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A298291 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 16 2018 08:54:01

%S 16,69,43,130,308,515,1084,2374,4754,10042,21207,44405,93926,196545,

%T 415228,877028,1844607,3908606,8255033,17418152,36906038,78043557,

%U 165022448,349534285,739762655,1565641561,3315996470,7021318129

%N Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

%C Column 5 of A298294.

%H R. H. Hardin, <a href="/A298291/b298291.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A298294.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 16 2018

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Last modified April 16 16:59 EDT 2024. Contains 371749 sequences. (Running on oeis4.)