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A297940 Number of nX5 0..1 arrays with every element equal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 09 2018 07:10:09

%S 1,31,16,74,330,1032,3640,12800,44663,159995,572956,2043261,7307313,

%T 26155457,93498812,334546709,1197214499,4283674305,15329787213,

%U 54860589339,196324599730,702596664568,2514424594382,8998511519872

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

%C Column 5 of A297943.

%H R. H. Hardin, <a href="/A297940/b297940.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A297943.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 09 2018

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)