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A156447 Number of n X n arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to 8. 0

%I #4 Dec 18 2015 18:17:16

%S 1,0,2,2,24,60,1483,10236,175765,2771020,133072650,2511725250,

%T 142353126510,4354347220860,366766557522330,16657062087640520

%N Number of n X n arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to 8.

%K nonn

%O 2,3

%A _R. H. Hardin_ Feb 09 2009

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Last modified May 8 11:33 EDT 2024. Contains 372332 sequences. (Running on oeis4.)