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A156424 Number of 17 X 17 arrays of squares of integers, symmetric about the diagonal and under 90 degree rotation, with all rows summing to n. 0

%I #5 Oct 27 2019 18:15:03

%S 1,0,0,0,66178,0,0,0,7777280,0,0,0,73938288,0,0,0,1262896895,89959563,

%T 0,0,5559809528,0,0,0,30866580416,991288522,0,0

%N Number of 17 X 17 arrays of squares of integers, symmetric about the diagonal and under 90 degree rotation, with all rows summing to n.

%K nonn

%O 0,5

%A _R. H. Hardin_, Feb 09 2009

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Last modified July 20 20:50 EDT 2024. Contains 374459 sequences. (Running on oeis4.)