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A295038 Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s. 1

%I

%S 21,876,19956,528282,13706771,355281224,9248214732,240292442848,

%T 6243986963713,162252303626409,4216381439247094,109570922468132003,

%U 2847344541437365138,73992200911927723171,1922796991924326509127

%N Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s.

%C Column 6 of A295040.

%H R. H. Hardin, <a href="/A295038/b295038.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..1..0..0..1..0..0. .1..1..0..1..1..1. .0..0..0..1..0..1. .0..0..0..0..0..1

%e ..1..0..0..1..1..0. .1..0..1..0..0..1. .1..1..0..1..0..1. .0..1..0..1..0..1

%e ..1..0..0..0..1..0. .0..0..1..0..0..0. .0..1..0..0..0..0. .1..1..0..1..0..0

%Y Cf. A295040.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 12 2017

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Last modified October 26 08:00 EDT 2021. Contains 348267 sequences. (Running on oeis4.)