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A146521 Number of n X n arrays of squares of integers summing to 27 with every element equal to at least one neighbor. 1

%I

%S 0,36,25148,18912868,9700090280,6565665508942

%N Number of n X n arrays of squares of integers summing to 27 with every element equal to at least one neighbor.

%K nonn

%O 2,2

%A _R. H. Hardin_ Apr 14 2009

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Last modified January 25 04:34 EST 2022. Contains 350565 sequences. (Running on oeis4.)