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%I #4 Nov 18 2017 09:35:16
%S 81,3082,132993,5611444,238620900,10130231034,430246838462,
%T 18271078872449,775938327252984,32952280860905243,1399410212643690245,
%U 59429797645640463296,2523850141539679904426,107182244435332709744186
%N Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.
%C Column 7 of A295253.
%H R. H. Hardin, <a href="/A295252/b295252.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..0..0..1..1..0..0. .0..0..1..0..0..0..1. .1..1..0..1..0..1..0
%e ..0..0..0..0..0..0..1. .0..0..0..0..1..1..0. .0..0..0..1..1..0..0
%e ..1..1..0..0..1..0..0. .0..0..1..1..0..0..1. .1..0..0..1..0..1..0
%Y Cf. A295253.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 18 2017
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