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A299837 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 20 2018 08:14:26

%S 5,888,54611,2853873,156175241,8606994457,473261273932,26017342950926,

%T 1430440832008036,78646438018436538,4324006434004007728,

%U 237735246967446346695,13070761700611946834990,718634755662375911880645

%N Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A299839.

%H R. H. Hardin, <a href="/A299837/b299837.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299839.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 20 2018

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)