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A316215 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 26 2018 17:49:37

%S 16,94,250,1468,8943,44018,242149,1355516,7364630,40388824,222974019,

%T 1225436161,6741965729,37150153393,204608197301,1127155820271,

%U 6212102723367,34238049347483,188724654726661,1040456205264741

%N Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A316218.

%H R. H. Hardin, <a href="/A316215/b316215.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..0. .0..0..1..0..0. .0..1..1..0..1

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

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

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

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

%Y Cf. A316218.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 26 2018

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Last modified April 23 09:48 EDT 2024. Contains 371905 sequences. (Running on oeis4.)