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A299558 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 12 2018 20:31:44

%S 1,31,21,77,348,1094,3919,13977,49728,182756,669766,2444078,8944985,

%T 32753763,119833236,438741809,1606516717,5881961826,21538299550,

%U 78868479665,288794128838,1057512050898,3872421498652,14180120799422

%N Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A299561.

%H R. H. Hardin, <a href="/A299558/b299558.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..0..0. .0..1..1..1..1. .0..0..1..1..0

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

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

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

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

%Y Cf. A299561.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 12 2018

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Last modified April 23 07:57 EDT 2024. Contains 371905 sequences. (Running on oeis4.)