A156405 - OEIS

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A156405

Number of 11 X 11 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n.

1, 35696, 108306280, 30649435140, 1267231350044, 10615656460584, 38221283215416, 566459875724280, 5572579847718200, 18408433074826454, 40748977102642818, 353949803694601635, 1865446774685049420

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

CROSSREFS

Sequence in context: A172712 A161023 A252920 * A065611 A101252 A133281

Adjacent sequences: A156402 A156403 A156404 * A156406 A156407 A156408

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 09 2009

STATUS

approved