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A156425 Number of 17 X 17 arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to n. 0

%I #5 Oct 27 2019 18:14:50

%S 1,1680,0,0,320743643010,10058239033920,0,0,16657062087640520,

%T 62993444371397120,0,0

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

%K nonn

%O 0,2

%A _R. H. Hardin_, Feb 09 2009

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Last modified July 22 06:32 EDT 2024. Contains 374481 sequences. (Running on oeis4.)