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A316573 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 07 2018 08:25:55

%S 1,82,94,899,3180,17695,88597,457091,2402617,12290981,65257765,

%T 336884544,1773776826,9233352806,48396620921,252740116169,

%U 1322408364998,6913953592171,36156417858788,189087266707408,988763407162789

%N Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A316576.

%H R. H. Hardin, <a href="/A316573/b316573.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316576.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 07 2018

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Last modified April 23 13:51 EDT 2024. Contains 371914 sequences. (Running on oeis4.)