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A302806 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 13 2018 13:07:51

%S 32,1405,28128,632004,14458177,327603711,7428713676,168777255305,

%T 3832039683236,87009511631968,1975863003410635,44867546574739748,

%U 1018847987183719920,23136108111721947785,525376281243945915231

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A302808.

%H R. H. Hardin, <a href="/A302806/b302806.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302808.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 13 2018

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)