Look how René Chrétien used reflecting grids to produce a 26x26 magic square. Notify that the second (column) grid is a reflection of the first (row) grid.
1x number + 1
0 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 25 |
0 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 25 |
0 | 1 | 2 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 23 | 24 | 25 |
25 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 0 |
25 | 24 | 2 | 3 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 22 | 23 | 1 | 0 |
25 | 24 | 2 | 3 | 4 | 20 | 6 | 18 | 17 | 16 | 15 | 11 | 13 | 12 | 14 | 10 | 9 | 8 | 7 | 19 | 5 | 21 | 22 | 23 | 1 | 0 |
25 | 24 | 2 | 3 | 4 | 5 | 6 | 7 | 17 | 16 | 10 | 11 | 13 | 12 | 14 | 15 | 9 | 8 | 18 | 19 | 20 | 21 | 22 | 23 | 1 | 0 |
0 | 24 | 2 | 3 | 4 | 5 | 6 | 7 | 17 | 16 | 10 | 11 | 13 | 12 | 14 | 15 | 9 | 8 | 18 | 19 | 20 | 21 | 22 | 23 | 1 | 25 |
0 | 24 | 23 | 22 | 4 | 5 | 6 | 7 | 8 | 16 | 10 | 11 | 12 | 13 | 14 | 15 | 9 | 17 | 18 | 19 | 20 | 21 | 3 | 2 | 1 | 25 |
0 | 24 | 23 | 22 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 3 | 2 | 1 | 25 |
0 | 1 | 23 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 2 | 24 | 25 |
0 | 1 | 23 | 3 | 21 | 20 | 6 | 7 | 8 | 9 | 15 | 11 | 12 | 13 | 14 | 10 | 16 | 17 | 18 | 19 | 5 | 4 | 22 | 2 | 24 | 25 |
0 | 24 | 23 | 3 | 21 | 5 | 19 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 6 | 20 | 4 | 22 | 2 | 1 | 25 |
25 | 24 | 2 | 22 | 4 | 5 | 19 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 6 | 20 | 21 | 3 | 23 | 1 | 0 |
25 | 1 | 2 | 22 | 4 | 20 | 6 | 7 | 8 | 9 | 15 | 11 | 12 | 13 | 14 | 10 | 16 | 17 | 18 | 19 | 5 | 21 | 3 | 23 | 24 | 0 |
25 | 1 | 2 | 3 | 21 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 4 | 22 | 23 | 24 | 0 |
25 | 24 | 2 | 22 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 3 | 23 | 1 | 0 |
0 | 24 | 23 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 2 | 1 | 25 |
25 | 24 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 14 | 12 | 13 | 11 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 1 | 0 |
25 | 24 | 2 | 3 | 4 | 5 | 6 | 18 | 8 | 9 | 10 | 14 | 12 | 13 | 11 | 15 | 16 | 17 | 7 | 19 | 20 | 21 | 22 | 23 | 1 | 0 |
25 | 24 | 2 | 3 | 4 | 20 | 19 | 18 | 8 | 9 | 10 | 14 | 12 | 13 | 11 | 15 | 16 | 17 | 7 | 6 | 5 | 21 | 22 | 23 | 1 | 0 |
25 | 1 | 23 | 3 | 21 | 5 | 19 | 18 | 17 | 9 | 15 | 14 | 13 | 12 | 11 | 10 | 16 | 8 | 7 | 6 | 20 | 4 | 22 | 2 | 24 | 0 |
0 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 25 |
0 | 1 | 2 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 23 | 24 | 25 |
25 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 0 |
0 | 1 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 24 | 25 |
+26x number
0 | 0 | 0 | 25 | 25 | 25 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 25 | 25 | 25 | 0 | 25 | 25 | 25 | 25 | 0 | 0 | 25 | 0 |
1 | 1 | 1 | 1 | 24 | 24 | 24 | 24 | 24 | 24 | 1 | 1 | 24 | 24 | 1 | 1 | 24 | 24 | 24 | 24 | 24 | 1 | 1 | 1 | 1 | 1 |
23 | 23 | 2 | 23 | 2 | 2 | 2 | 2 | 23 | 23 | 23 | 23 | 23 | 2 | 2 | 2 | 2 | 23 | 2 | 2 | 2 | 23 | 23 | 2 | 23 | 23 |
22 | 22 | 22 | 22 | 3 | 3 | 3 | 3 | 22 | 22 | 3 | 3 | 3 | 22 | 22 | 3 | 22 | 3 | 3 | 3 | 3 | 3 | 22 | 22 | 22 | 22 |
21 | 21 | 21 | 21 | 21 | 4 | 4 | 4 | 4 | 4 | 4 | 21 | 21 | 4 | 4 | 21 | 4 | 4 | 4 | 4 | 4 | 21 | 21 | 21 | 21 | 21 |
20 | 20 | 20 | 20 | 20 | 20 | 5 | 5 | 5 | 5 | 5 | 20 | 5 | 5 | 20 | 5 | 5 | 5 | 5 | 5 | 20 | 5 | 20 | 20 | 20 | 20 |
19 | 19 | 19 | 19 | 19 | 6 | 6 | 6 | 6 | 6 | 19 | 6 | 19 | 19 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 19 | 19 | 19 | 19 | 19 |
18 | 18 | 18 | 18 | 18 | 18 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 17 | 17 | 17 | 17 | 17 |
16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 16 | 16 | 16 | 16 |
15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 | 10 | 10 | 10 | 15 | 10 | 10 | 15 | 10 | 10 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 | 15 |
14 | 14 | 14 | 14 | 14 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 |
12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 |
11 | 11 | 11 | 11 | 11 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
10 | 10 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 10 | 15 | 15 | 10 | 15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 | 10 | 10 | 10 |
9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 9 | 9 | 9 | 9 |
8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 8 | 8 | 8 | 8 | 8 |
7 | 7 | 7 | 7 | 7 | 7 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
6 | 6 | 6 | 6 | 6 | 19 | 19 | 19 | 19 | 19 | 6 | 19 | 6 | 6 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 6 | 6 | 6 | 6 | 6 |
5 | 5 | 5 | 5 | 5 | 5 | 20 | 20 | 20 | 20 | 20 | 5 | 20 | 20 | 5 | 20 | 20 | 20 | 20 | 20 | 5 | 20 | 5 | 5 | 5 | 5 |
4 | 4 | 4 | 4 | 4 | 21 | 21 | 21 | 21 | 21 | 21 | 4 | 4 | 21 | 21 | 4 | 21 | 21 | 21 | 21 | 21 | 4 | 4 | 4 | 4 | 4 |
3 | 3 | 3 | 3 | 22 | 22 | 22 | 22 | 3 | 3 | 22 | 22 | 22 | 3 | 3 | 22 | 3 | 22 | 22 | 22 | 22 | 22 | 3 | 3 | 3 | 3 |
2 | 2 | 23 | 2 | 23 | 23 | 23 | 23 | 2 | 2 | 2 | 2 | 2 | 23 | 23 | 23 | 23 | 2 | 23 | 23 | 23 | 2 | 2 | 23 | 2 | 2 |
24 | 24 | 24 | 24 | 1 | 1 | 1 | 1 | 1 | 1 | 24 | 24 | 1 | 1 | 24 | 24 | 1 | 1 | 1 | 1 | 1 | 24 | 24 | 24 | 24 | 24 |
25 | 25 | 25 | 0 | 0 | 0 | 0 | 25 | 25 | 25 | 25 | 25 | 25 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 25 | 25 | 0 | 25 |
= (simple) 26x26 magic square
1 | 2 | 24 | 673 | 672 | 671 | 670 | 19 | 18 | 17 | 16 | 15 | 14 | 663 | 662 | 661 | 660 | 9 | 658 | 657 | 656 | 655 | 4 | 3 | 675 | 26 |
27 | 28 | 50 | 49 | 646 | 645 | 644 | 643 | 642 | 641 | 42 | 41 | 638 | 637 | 38 | 37 | 634 | 633 | 632 | 631 | 630 | 31 | 30 | 29 | 51 | 52 |
599 | 600 | 55 | 621 | 74 | 73 | 72 | 71 | 616 | 615 | 614 | 613 | 612 | 65 | 64 | 63 | 62 | 607 | 60 | 59 | 58 | 603 | 602 | 76 | 623 | 624 |
598 | 574 | 596 | 595 | 100 | 99 | 98 | 97 | 590 | 589 | 94 | 93 | 92 | 585 | 584 | 89 | 582 | 87 | 86 | 85 | 84 | 83 | 576 | 575 | 597 | 573 |
572 | 571 | 549 | 550 | 568 | 125 | 124 | 123 | 122 | 121 | 120 | 561 | 560 | 117 | 116 | 557 | 114 | 113 | 112 | 111 | 110 | 551 | 569 | 570 | 548 | 547 |
546 | 545 | 523 | 524 | 525 | 541 | 137 | 149 | 148 | 147 | 146 | 532 | 144 | 143 | 535 | 141 | 140 | 139 | 138 | 150 | 526 | 152 | 543 | 544 | 522 | 521 |
520 | 519 | 497 | 498 | 499 | 162 | 163 | 164 | 174 | 173 | 505 | 168 | 508 | 507 | 171 | 172 | 166 | 165 | 175 | 176 | 177 | 516 | 517 | 518 | 496 | 495 |
469 | 493 | 471 | 472 | 473 | 474 | 189 | 190 | 200 | 199 | 193 | 194 | 196 | 195 | 197 | 198 | 192 | 191 | 201 | 488 | 489 | 490 | 491 | 492 | 470 | 494 |
443 | 467 | 466 | 465 | 447 | 448 | 449 | 450 | 217 | 225 | 219 | 220 | 221 | 222 | 223 | 224 | 218 | 226 | 227 | 228 | 229 | 464 | 446 | 445 | 444 | 468 |
417 | 441 | 440 | 439 | 421 | 422 | 423 | 424 | 425 | 244 | 245 | 246 | 247 | 248 | 249 | 250 | 251 | 252 | 253 | 254 | 255 | 256 | 420 | 419 | 418 | 442 |
391 | 392 | 414 | 394 | 395 | 396 | 267 | 268 | 269 | 270 | 271 | 402 | 273 | 274 | 405 | 276 | 277 | 278 | 279 | 280 | 281 | 412 | 413 | 393 | 415 | 416 |
365 | 366 | 388 | 368 | 386 | 307 | 293 | 294 | 295 | 296 | 302 | 298 | 299 | 300 | 301 | 297 | 303 | 304 | 383 | 384 | 370 | 369 | 387 | 367 | 389 | 390 |
339 | 363 | 362 | 342 | 360 | 344 | 358 | 346 | 321 | 322 | 323 | 324 | 325 | 326 | 327 | 328 | 329 | 330 | 331 | 319 | 333 | 343 | 361 | 341 | 340 | 364 |
338 | 337 | 315 | 335 | 317 | 318 | 332 | 320 | 347 | 348 | 349 | 350 | 351 | 352 | 353 | 354 | 355 | 356 | 357 | 345 | 359 | 334 | 316 | 336 | 314 | 313 |
312 | 288 | 289 | 309 | 291 | 385 | 371 | 372 | 373 | 374 | 380 | 376 | 377 | 378 | 379 | 375 | 381 | 382 | 305 | 306 | 292 | 308 | 290 | 310 | 311 | 287 |
286 | 262 | 263 | 264 | 282 | 266 | 397 | 398 | 399 | 400 | 401 | 272 | 403 | 404 | 275 | 406 | 407 | 408 | 409 | 410 | 411 | 265 | 283 | 284 | 285 | 261 |
260 | 259 | 237 | 257 | 239 | 240 | 241 | 242 | 243 | 426 | 427 | 428 | 429 | 430 | 431 | 432 | 433 | 434 | 435 | 436 | 437 | 438 | 238 | 258 | 236 | 235 |
209 | 233 | 232 | 212 | 213 | 214 | 215 | 216 | 451 | 452 | 453 | 454 | 455 | 456 | 457 | 458 | 459 | 460 | 461 | 462 | 463 | 230 | 231 | 211 | 210 | 234 |
208 | 207 | 185 | 186 | 187 | 188 | 475 | 476 | 477 | 478 | 479 | 483 | 481 | 482 | 480 | 484 | 485 | 486 | 487 | 202 | 203 | 204 | 205 | 206 | 184 | 183 |
182 | 181 | 159 | 160 | 161 | 500 | 501 | 513 | 503 | 504 | 167 | 509 | 169 | 170 | 506 | 510 | 511 | 512 | 502 | 514 | 515 | 178 | 179 | 180 | 158 | 157 |
156 | 155 | 133 | 134 | 135 | 151 | 540 | 539 | 529 | 530 | 531 | 145 | 533 | 534 | 142 | 536 | 537 | 538 | 528 | 527 | 136 | 542 | 153 | 154 | 132 | 131 |
130 | 106 | 128 | 108 | 126 | 552 | 566 | 565 | 564 | 556 | 562 | 119 | 118 | 559 | 558 | 115 | 563 | 555 | 554 | 553 | 567 | 109 | 127 | 107 | 129 | 105 |
79 | 80 | 102 | 101 | 594 | 593 | 592 | 591 | 96 | 95 | 588 | 587 | 586 | 91 | 90 | 583 | 88 | 581 | 580 | 579 | 578 | 577 | 82 | 81 | 103 | 104 |
53 | 54 | 601 | 75 | 620 | 619 | 618 | 617 | 70 | 69 | 68 | 67 | 66 | 611 | 610 | 609 | 608 | 61 | 606 | 605 | 604 | 57 | 56 | 622 | 77 | 78 |
650 | 626 | 648 | 647 | 48 | 47 | 46 | 45 | 44 | 43 | 640 | 639 | 40 | 39 | 636 | 635 | 36 | 35 | 34 | 33 | 32 | 629 | 628 | 627 | 649 | 625 |
651 | 652 | 674 | 23 | 22 | 21 | 20 | 669 | 668 | 667 | 666 | 665 | 664 | 13 | 12 | 11 | 10 | 659 | 8 | 7 | 6 | 5 | 654 | 653 | 25 | 676 |
Use the method of reflecting grids (1) to construct magic squares of order is double odd. See 6x6, 10x10, 14x14, 18x18, 22x22, 26x26 en 30x30