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A305286 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 May 29 2018 08:22:58

%S 5,1145,3696,46983,301533,2636906,21092843,175328455,1483162272,

%T 12350651524,105331621334,887676949433,7551807378774,64100557800097,

%U 544805261115470,4634560982026166,39407998339309939,335347069378931989

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A305288.

%H R. H. Hardin, <a href="/A305286/b305286.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305288.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 29 2018

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Last modified August 24 11:44 EDT 2024. Contains 375410 sequences. (Running on oeis4.)