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A316122 Number of n X 7 0..1 arrays with every element unequal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #6 May 09 2022 00:25:35

%S 1,99,391,2524,26626,283238,2525039,25192165,261795432,2591075341,

%T 26052154653,265234758788,2677888952446,27053428148437,

%U 274176126652529,2775782288833705,28090747792390254,284466556842037225

%N Number of n X 7 0..1 arrays with every element unequal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A316123.

%H R. H. Hardin, <a href="/A316122/b316122.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316123.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 24 2018

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)