A146092 - OEIS

A146092

Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.

%I #4 Dec 18 2015 18:17:13

%S 1,235,1894,5928,14762,31448,59802,104420,170678,264732,393518,564752,

%T 786930,1069328,1422002,1855788,2382302,3013940,3763878,4646072,

%U 5675258,6866952,8237450,9803828,11583942,13596428,15860702

%N Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.

%K nonn

%O 4,2

%A _R. H. Hardin_ Apr 14 2009