Paul Michelet pointed out to me the al-Antaakii concentric 15x15 magic square with the extra diamond feature from the year 987 (!!!); see youtube
video of Gresham College:
http://www.youtube.com/watch?v=YUsSaGnbcCw
62 |
2 |
222 |
220 |
8 |
10 |
214 |
213 |
212 |
16 |
18 |
206 |
204 |
24 |
64 |
126 |
78 |
26 |
198 |
196 |
32 |
11 |
189 |
207 |
34 |
190 |
188 |
40 |
80 |
100 |
128 |
122 |
94 |
42 |
182 |
7 |
35 |
173 |
183 |
203 |
180 |
48 |
96 |
104 |
98 |
50 |
124 |
118 |
110 |
3 |
31 |
51 |
165 |
167 |
179 |
199 |
112 |
108 |
102 |
176 |
52 |
70 |
120 |
201 |
75 |
159 |
155 |
153 |
83 |
87 |
79 |
25 |
106 |
156 |
174 |
54 |
72 |
205 |
181 |
141 |
95 |
135 |
133 |
103 |
99 |
85 |
45 |
21 |
154 |
172 |
170 |
209 |
185 |
169 |
145 |
125 |
111 |
121 |
107 |
101 |
81 |
57 |
41 |
17 |
56 |
211 |
187 |
171 |
163 |
149 |
129 |
109 |
113 |
117 |
97 |
77 |
63 |
55 |
39 |
15 |
168 |
9 |
33 |
49 |
69 |
89 |
119 |
105 |
115 |
137 |
157 |
177 |
193 |
217 |
58 |
60 |
82 |
5 |
29 |
65 |
127 |
91 |
93 |
123 |
131 |
161 |
197 |
221 |
144 |
166 |
66 |
142 |
90 |
1 |
147 |
67 |
71 |
73 |
143 |
139 |
151 |
225 |
136 |
84 |
160 |
158 |
140 |
92 |
114 |
223 |
195 |
175 |
61 |
59 |
47 |
27 |
116 |
134 |
86 |
68 |
152 |
88 |
130 |
184 |
44 |
219 |
191 |
53 |
43 |
23 |
46 |
178 |
132 |
138 |
74 |
76 |
146 |
200 |
28 |
30 |
194 |
215 |
37 |
19 |
192 |
36 |
38 |
186 |
148 |
150 |
162 |
224 |
4 |
6 |
218 |
216 |
12 |
13 |
14 |
210 |
208 |
20 |
22 |
202 |
164 |
The
white diamond contains all odd numbers!!!