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A305365 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 May 31 2018 09:18:23

%S 5,333,943,5465,32765,179644,1113793,6595796,39677540,241971927,

%T 1464024977,8913650834,54269187889,330301566873,2012653511729,

%U 12260934504511,74704834307297,455234824361587,2773994928611297

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A305367.

%H R. H. Hardin, <a href="/A305365/b305365.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305367.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 31 2018

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Last modified April 25 12:28 EDT 2024. Contains 371969 sequences. (Running on oeis4.)