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A295039 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s. 1

%I

%S 37,2735,104096,4738235,209181266,9248214732,411280569141,

%T 18227207589288,807975522778623,35828949243544333,1588724655137268304,

%U 70444327993290622210,3123514826860958239480,138498446900583005504125

%N Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s.

%C Column 7 of A295040.

%H R. H. Hardin, <a href="/A295039/b295039.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A295040.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 12 2017

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)