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A156391 Number of 7X7 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n. 0
1, 232, 6912, 35150, 42354, 44124, 425674, 804511, 446508, 638012, 4465916, 5291400, 2246390, 3026820, 18106164, 25432912, 12496449, 5934606, 46859304, 91441740, 47944020, 17647254, 123856526, 218810112, 102258544, 46559350 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..25.

CROSSREFS

Sequence in context: A238919 A327831 A234682 * A279660 A188401 A307827

Adjacent sequences:  A156388 A156389 A156390 * A156392 A156393 A156394

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

STATUS

approved

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Last modified January 23 01:37 EST 2021. Contains 340384 sequences. (Running on oeis4.)