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A305285 Number of n X 5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero. 1

%I #6 Jan 01 2024 19:30:15

%S 3,313,895,8431,41446,301533,1847322,12314089,80678010,526137481,

%T 3481542013,22776996398,150218677027,986628682316,6493406925686,

%U 42707158770594,280923646529256,1848097254303284,12156318968086178

%N Number of n X 5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305288.

%H R. H. Hardin, <a href="/A305285/b305285.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305288.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 29 2018

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)