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%I #6 Apr 26 2020 21:07:00
%S 1,6,94,2272,510086,267542809,364592446431,2034946979145210,
%T 34966993876417278748
%N Number of n X n 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1's.
%C Diagonal of A296827.
%e Some solutions for n=4
%e ..0..0..1..1. .1..1..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0
%e ..1..1..0..1. .0..1..0..0. .1..0..0..1. .0..0..0..0. .1..1..1..0
%e ..0..1..0..1. .0..1..0..0. .0..1..1..0. .1..1..1..0. .0..1..1..0
%e ..0..0..1..1. .1..1..1..0. .0..0..1..1. .0..1..0..0. .0..0..0..0
%Y Cf. A296827.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 21 2017
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