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A156467 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 17. 0

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

%S 2,2,44,76,1804,8172,1022492,7436362,4686068520,71763897760,

%T 74820160016800

%N Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 17.

%K nonn

%O 2,1

%A _R. H. Hardin_ Feb 09 2009

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Last modified March 28 08:02 EDT 2024. Contains 371236 sequences. (Running on oeis4.)