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A156504 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 40. 0

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

%S 2,0,32,114,16570,196824,116949508,3753914276,4711859922047

%N Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 40.

%K nonn

%O 2,1

%A _R. H. Hardin_ Feb 09 2009

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Last modified April 27 05:51 EDT 2024. Contains 372009 sequences. (Running on oeis4.)