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%I #6 May 03 2020 15:30:22
%S 2,8,92,1677,97005,8800153,2300975096,1078420953679,1299213136815377,
%T 3046735975885152987,17269379808592526211295,
%U 200109250657229443895686946
%N Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1's.
%C Diagonal of A297457.
%e Some solutions for n=5
%e ..1..0..0..0..0. .1..1..0..0..1. .0..0..0..0..0. .0..0..1..0..0
%e ..0..0..1..1..1. .1..1..0..0..1. .0..0..0..0..0. .1..0..1..0..0
%e ..0..0..0..1..0. .0..0..0..0..1. .1..0..0..0..0. .1..0..1..0..1
%e ..0..0..0..0..0. .0..0..1..0..0. .1..0..0..0..0. .1..0..1..0..0
%e ..0..0..0..0..1. .1..0..0..0..0. .0..0..0..0..1. .1..0..1..0..0
%Y Cf. A297457.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2017
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