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%I
%S 1,5,26,326,8257,420519,43655680,9196006628,3931962260999,
%T 3413278465996124,6014918791165296861,21516997694119562490452,
%U 156257115416099427263269042,2303561969444050408142747347914
%N Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 4 1's.
%C Diagonal of A295120.
%e Some solutions for n=5
%e ..0..0..0..0..0. .1..0..0..1..1. .0..0..0..0..0. .0..0..0..0..1
%e ..1..1..0..0..0. .1..0..1..0..0. .1..1..0..1..1. .0..0..0..0..1
%e ..0..0..1..1..0. .0..1..1..1..0. .0..0..1..0..0. .0..0..0..0..0
%e ..0..1..0..0..0. .0..0..1..0..1. .1..0..1..0..0. .0..0..0..0..1
%e ..0..1..0..1..1. .0..0..0..0..1. .1..0..0..0..0. .1..1..0..0..1
%Y Cf. A295120.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 15 2017
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