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%I #4 Nov 23 2017 09:26:07
%S 21,876,21489,588529,16031147,437241277,11938414614,325438086413,
%T 8875686431050,242075272701612,6602021695088725,180056949233250710,
%U 4910676438495880068,133928360921171032911,3652617573522712382545
%N Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s.
%C Column 6 of A295531.
%H R. H. Hardin, <a href="/A295529/b295529.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0..1. .0..0..1..1..0..0. .0..0..0..0..1..1. .0..0..0..0..0..0
%e ..0..0..0..0..1..1. .0..1..0..1..1..1. .0..1..0..1..1..0. .0..0..0..0..1..1
%e ..0..1..1..0..0..0. .0..1..1..0..0..0. .0..1..0..1..0..1. .0..0..0..1..1..1
%e ..0..0..1..1..0..1. .0..0..1..0..0..1. .0..0..0..0..0..1. .0..0..0..0..1..0
%e ..0..0..0..1..0..1. .0..0..1..0..0..1. .0..0..0..0..0..0. .0..0..1..1..0..0
%Y Cf. A295531.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 23 2017
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