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A316639 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 09 2018 11:18:41

%S 5,333,1344,9773,85222,684269,5879970,50360206,428319949,3674375963,

%T 31500882914,269759007869,2312231101195,19820061601337,

%U 169853073919389,1455814567670817,12477915004284634,106944514066842361

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A316641.

%H R. H. Hardin, <a href="/A316639/b316639.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316641.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 09 2018

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)