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A156401 Number of 9 X 9 arrays of squares of integers, symmetric under 90-degree rotation, with all rows summing to n. 0
1, 12, 0, 0, 2334, 2400, 0, 0, 10236, 6871, 0, 0, 19368, 51672, 0, 0, 78762, 62322, 0, 0, 352350, 244572, 0, 0, 568284, 268092, 0, 0, 590400, 1134048, 0, 0, 960648, 688347, 0, 0, 3730237, 3085200, 0, 0, 5025540, 1936344, 0, 0, 3311664, 7083564, 0, 0, 5061300 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..48.

CROSSREFS

Sequence in context: A230926 A064141 A230526 * A246223 A199542 A304330

Adjacent sequences:  A156398 A156399 A156400 * A156402 A156403 A156404

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 09 2009

STATUS

approved

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Last modified January 16 18:17 EST 2022. Contains 350376 sequences. (Running on oeis4.)