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 A316418 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 02 2018 09:05:40

%S 32,45,180,1009,5695,33380,192752,1116462,6489620,37702431,218960851,

%T 1271858465,7388254065,42917256178,249298245052,1448137850117,

%U 8412029807393,48864250442439,283845302713611,1648816334751464

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

%C Column 6 of A316420.

%H R. H. Hardin, <a href="/A316418/b316418.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316420.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 02 2018

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Last modified June 25 03:44 EDT 2024. Contains 373694 sequences. (Running on oeis4.)