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 A304924 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 May 21 2018 09:15:15

%S 32,45,191,851,4186,21214,104451,524286,2629697,13159898,65909764,

%T 330440822,1656131806,8296998329,41578385218,208385151369,

%U 1044232898642,5232702674950,26223139428812,131412249840686,658531778389885

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

%C Column 6 of A304926.

%H R. H. Hardin, <a href="/A304924/b304924.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A304924/a304924.txt">Empirical recurrence of order 96</a>

%F Empirical recurrence of order 96 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304926.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 21 2018

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Last modified July 15 06:17 EDT 2024. Contains 374324 sequences. (Running on oeis4.)