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A126650
A 9 x 9 magic square.
5
71, 1, 51, 32, 50, 2, 80, 3, 79, 21, 41, 61, 56, 26, 13, 69, 25, 57, 31, 81, 11, 20, 62, 65, 17, 63, 19, 34, 40, 60, 43, 28, 64, 18, 55, 27, 48, 42, 22, 54, 39, 75, 7, 10, 72, 33, 53, 15, 68, 16, 44, 58, 77, 5, 49, 29, 67, 14, 66, 24, 38, 59, 23, 76, 4, 70, 73, 8, 37, 36, 30, 35, 6, 78, 12, 9, 74, 45, 46, 47, 52
OFFSET
1,1
COMMENTS
The magic sum is 369. See Figure C.4 in Appendix C in Maya Ahmed's PhD thesis.
LINKS
Maya Mohsin Ahmed, Algebraic Combinatorics of Magic Squares, arXiv:math/0405476 [math.CO], 2004. PhD thesis.
Maya Mohsin Ahmed, How many squares are there, Mr. Franklin?: Constructing and Enumerating Franklin Squares, Amer. Math. Monthly, Vol. 111, 2004, pp. 394-410.
EXAMPLE
The magic square is:
71 1 51 32 50 2 80 3 79
21 41 61 56 26 13 69 25 57
31 81 11 20 62 65 17 63 19
34 40 60 43 28 64 18 55 27
48 42 22 54 39 75 7 10 72
33 53 15 68 16 44 58 77 5
49 29 67 14 66 24 38 59 23
76 4 70 73 8 37 36 30 35
6 78 12 9 74 45 46 47 52
CROSSREFS
Sequence in context: A186073 A087043 A126648 * A126651 A126649 A266548
KEYWORD
fini,full,nonn,tabf
AUTHOR
Parthasarathy Nambi, Feb 08 2007
STATUS
approved