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A299349 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 07 2018 09:57:10

%S 64,353,451,4767,30814,150748,1262771,8560581,57300258,426035059,

%T 2967970785,21004206056,151233991720,1069609810758,7619801482207,

%U 54418606606899,386950658000779,2757469957283930,19654984493748915

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299350.

%H R. H. Hardin, <a href="/A299349/b299349.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299350.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 07 2018

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)