A126651 A 7 X 7 magic square.

71, 1, 51, 32, 50, 2, 80, 21, 41, 61, 56, 26, 13, 69, 31, 81, 11, 20, 62, 65, 17, 34, 40, 60, 43, 28, 64, 18, 48, 42, 22, 54, 39, 75, 7, 33, 53, 15, 68, 16, 44, 58, 49, 29, 67, 14, 66, 24, 38

Offset

1,1

Comments

The magic sum is 287. See Figure C.4 in Appendix C in Maya Ahmed's PhD thesis.

Links

Table of n, a(n) for n=1..49.

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
21 41 61 56 26 13 69
31 81 11 20 62 65 17
34 40 60 43 28 64 18
48 42 22 54 39 75 7
33 53 15 68 16 44 58
49 29 67 14 66 24 38

Crossrefs

Sequence in context: A087043 A126648 A126650 * A126649 A266548 A051324

Adjacent sequences: A126648 A126649 A126650 * A126652 A126653 A126654

Keyword

fini,full,nonn,tabf

Author

Parthasarathy Nambi, Feb 08 2007

Status

approved