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A298219 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 15 2018 08:07:53

%S 32,157,195,1492,6598,25717,150617,749072,3768994,20393224,106066124,

%T 556195274,2954907194,15557703954,82124285924,434539039615,

%U 2295009472389,12128635280254,64125706558072,338931941092437,1791630458583318

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

%C Column 6 of A298221.

%H R. H. Hardin, <a href="/A298219/b298219.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A298221.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 15 2018

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Last modified April 23 02:53 EDT 2024. Contains 371906 sequences. (Running on oeis4.)