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A299940 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 22 2018 07:26:07

%S 32,969,1860,7016,30204,124748,495413,2007099,8185319,33071007,

%T 133779494,543316400,2205549089,8951083065,36361505664,147797032613,

%U 600941149524,2444560983427,9949418213584,40512983326103,165037992023476

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A299942.

%H R. H. Hardin, <a href="/A299940/b299940.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299942.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 22 2018

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