Take a panmagic 11x11 square and add 24 to all numbers, so in the 11x11 inlay are the 121 middle numbers from 25 up to 145.
In the border are the 24 lowest (1 up to 24) and the 24 highest (146 up to 169) numbers. Read the explanation on webpage 3x3 in 5x5 & concentric, how to construct the border.
See in the download below how the 13x13 border has been constructed or use the download to puzzle your own border.
The result is:
Pan 11x11 in 13x13 magic square
12 |
24 |
21 |
20 |
18 |
15 |
159 |
160 |
163 |
164 |
167 |
168 |
14 |
147 |
25 |
123 |
92 |
71 |
50 |
139 |
129 |
108 |
87 |
66 |
45 |
23 |
148 |
143 |
133 |
102 |
90 |
59 |
38 |
28 |
117 |
96 |
75 |
54 |
22 |
151 |
42 |
32 |
121 |
100 |
69 |
57 |
136 |
126 |
105 |
84 |
63 |
19 |
153 |
51 |
140 |
130 |
109 |
88 |
67 |
36 |
35 |
114 |
93 |
72 |
17 |
154 |
60 |
39 |
29 |
118 |
97 |
76 |
55 |
144 |
124 |
112 |
81 |
16 |
157 |
79 |
48 |
137 |
127 |
106 |
85 |
64 |
43 |
33 |
122 |
91 |
13 |
9 |
89 |
58 |
46 |
26 |
115 |
94 |
73 |
52 |
141 |
131 |
110 |
161 |
8 |
98 |
77 |
56 |
135 |
134 |
103 |
82 |
61 |
40 |
30 |
119 |
162 |
5 |
107 |
86 |
65 |
44 |
34 |
113 |
101 |
70 |
49 |
138 |
128 |
165 |
4 |
116 |
95 |
74 |
53 |
142 |
132 |
111 |
80 |
68 |
37 |
27 |
166 |
1 |
125 |
104 |
83 |
62 |
41 |
31 |
120 |
99 |
78 |
47 |
145 |
169 |
156 |
146 |
149 |
150 |
152 |
155 |
11 |
10 |
7 |
6 |
3 |
2 |
158 |
You can use this method to construct magic squares of odd order from 5x5 to infinity. See on this website 5x5, 7x7, 9x9, 11x11, 13x13, 15x15, 17x17, 19x19, 21x21, 23x23, 25x25, 27x27, 29x29 & 31x31