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A316381 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 30 2018 19:17:47

%S 5,1145,11423,228485,4067961,70282175,1244767536,22077180053,

%T 388558892008,6870771642131,121380299131324,2143383013298806,

%U 37865564867036673,668854848272576791,11814292721299354307

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A316383.

%H R. H. Hardin, <a href="/A316381/b316381.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316383.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 30 2018

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Last modified May 7 18:53 EDT 2024. Contains 372313 sequences. (Running on oeis4.)