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A146090 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 4 and every element equal to at least one neighbor. 1

%I

%S 1,93,538,1532,3630,7540,14138,24480,39802,61520,91230,130708,181910,

%T 246972,328210,428120,549378,694840,867542,1070700,1307710,1582148,

%U 1897770,2258512,2668490,3132000,3653518,4237700,4889382,5613580

%N Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 4 and every element equal to at least one neighbor.

%K nonn

%O 3,2

%A _R. H. Hardin_ Apr 14 2009

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Last modified May 26 17:49 EDT 2019. Contains 323597 sequences. (Running on oeis4.)