A146203 - OEIS

A146203

Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7 and every element equal to at least one neighbor.

%I #4 Dec 18 2015 18:17:14

%S 0,18,79648,1568158,9251144,34765154,101461384,250731864,549801520,

%T 1100971428,2052324440,3609891704,6051280064

%N Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7 and every element equal to at least one neighbor.

%K nonn

%O 4,2

%A _R. H. Hardin_ Apr 14 2009