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A305019 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 May 23 2018 16:14:01

%S 0,61,387,6742,101178,1575677,24498639,380995482,5926730196,

%T 92211738808,1434545885081,22318674073984,347229371088302,

%U 5402134371252384,84045598929827406,1307567768384242488,20342933954502637478

%N Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305022.

%H R. H. Hardin, <a href="/A305019/b305019.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305022.

%K nonn

%O 1,2

%A _R. H. Hardin_, May 23 2018

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Last modified August 27 17:42 EDT 2024. Contains 375471 sequences. (Running on oeis4.)