A concentric magic square is nice. A concentric magic square with diamond is even better; see i.e. the 15x15 Al Antaakii concentric magic square with diamond. In the diamond are alle odd numbers (and outside the diamond are the even numbers).
How to construct a concentric magic square with diamond? Puzzle in EXCEL and see the result below:
17x17 concentric magic square with diamond
214 |
210 |
82 |
206 |
86 |
202 |
92 |
196 |
1 |
96 |
192 |
100 |
188 |
186 |
178 |
158 |
78 |
114 |
258 |
232 |
60 |
228 |
64 |
224 |
229 |
63 |
25 |
68 |
220 |
72 |
216 |
180 |
36 |
176 |
174 |
38 |
8 |
22 |
266 |
26 |
275 |
17 |
271 |
21 |
267 |
262 |
30 |
140 |
280 |
252 |
116 |
118 |
42 |
278 |
2 |
284 |
233 |
237 |
241 |
245 |
37 |
33 |
29 |
250 |
4 |
12 |
248 |
172 |
170 |
44 |
276 |
200 |
83 |
225 |
221 |
217 |
81 |
85 |
89 |
93 |
211 |
90 |
14 |
246 |
120 |
106 |
244 |
16 |
31 |
95 |
107 |
97 |
101 |
181 |
177 |
173 |
179 |
195 |
259 |
274 |
46 |
184 |
182 |
48 |
5 |
35 |
91 |
191 |
163 |
155 |
125 |
123 |
159 |
99 |
199 |
255 |
285 |
242 |
108 |
168 |
243 |
283 |
39 |
87 |
187 |
133 |
139 |
153 |
143 |
157 |
103 |
203 |
251 |
7 |
47 |
122 |
3 |
27 |
9 |
41 |
213 |
185 |
129 |
149 |
145 |
141 |
161 |
105 |
77 |
249 |
281 |
263 |
287 |
126 |
247 |
279 |
239 |
215 |
115 |
169 |
147 |
137 |
151 |
121 |
175 |
75 |
51 |
11 |
43 |
164 |
162 |
240 |
13 |
235 |
219 |
119 |
131 |
135 |
165 |
167 |
127 |
171 |
71 |
55 |
277 |
50 |
128 |
130 |
52 |
272 |
231 |
223 |
111 |
193 |
189 |
109 |
113 |
117 |
183 |
67 |
59 |
18 |
238 |
160 |
156 |
236 |
270 |
256 |
79 |
65 |
69 |
73 |
209 |
205 |
201 |
197 |
207 |
34 |
20 |
54 |
134 |
136 |
56 |
166 |
286 |
6 |
57 |
53 |
49 |
45 |
253 |
257 |
261 |
40 |
288 |
124 |
234 |
154 |
152 |
146 |
10 |
268 |
24 |
264 |
15 |
273 |
19 |
269 |
23 |
28 |
260 |
150 |
282 |
144 |
138 |
142 |
254 |
58 |
230 |
62 |
226 |
66 |
61 |
227 |
265 |
222 |
70 |
218 |
74 |
110 |
32 |
148 |
212 |
80 |
208 |
84 |
204 |
88 |
198 |
94 |
289 |
194 |
98 |
190 |
102 |
104 |
112 |
132 |
76 |
Puzzle yourself using the EXCEL download below.