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A300135 Number of nX5 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 26 2018 08:01:14

%S 1,5,88,204,2156,11439,80126,539828,3690822,25855244,181396847,

%T 1284607895,9131448048,65117215924,465443908546,3331780602936,

%U 23876491539705,171232530606379,1228656057762297,8819275239846761

%N Number of nX5 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A300138.

%H R. H. Hardin, <a href="/A300135/b300135.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300138.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 26 2018

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)