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A316755 Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 12 2018 11:45:04

%S 5,109,185,142,3366,10850,23857,205529,822953,2592451,14966482,

%T 65348783,244338602,1196300940,5327481349,21670205298,99204862693,

%U 441433364881,1870156906809,8335414318491,36918152188856,159440282900858

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A316757.

%H R. H. Hardin, <a href="/A316755/b316755.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316757.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 12 2018

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Last modified August 24 11:32 EDT 2024. Contains 375410 sequences. (Running on oeis4.)