A146522 - OEIS

A146522

Number of n X n arrays of squares of integers summing to 28 with every element equal to at least one neighbor.

%I #4 Dec 18 2015 18:17:15

%S 0,132,31837,22671402,12853769226

%N Number of n X n arrays of squares of integers summing to 28 with every element equal to at least one neighbor.

%K nonn

%O 2,2

%A _R. H. Hardin_ Apr 14 2009