A304924 - OEIS

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.

32, 45, 191, 851, 4186, 21214, 104451, 524286, 2629697, 13159898, 65909764, 330440822, 1656131806, 8296998329, 41578385218, 208385151369, 1044232898642, 5232702674950, 26223139428812, 131412249840686, 658531778389885

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OFFSET

1,1

COMMENTS

Column 6 of A304926.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 96

FORMULA

Empirical recurrence of order 96 (see link above)

EXAMPLE

Some solutions for n=5

..0..1..0..0..0..1. .0..0..1..1..1..1. .0..0..0..0..1..0. .0..1..0..0..1..0

..0..0..0..0..1..0. .0..0..1..1..0..1. .0..0..0..0..0..0. .0..0..0..0..0..0

..0..0..1..0..0..0. .1..1..1..1..0..1. .1..0..0..0..0..1. .0..0..1..0..0..0

..0..1..0..0..0..0. .1..1..1..1..1..1. .0..0..1..1..0..0. .1..0..0..1..0..0

..0..0..0..0..1..0. .1..1..1..1..1..1. .0..0..0..0..0..0. .0..0..0..0..0..0

CROSSREFS

Cf. A304926.

Sequence in context: A304602 A305338 A316418 * A306164 A317381 A178311

Adjacent sequences: A304921 A304922 A304923 * A304925 A304926 A304927

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 21 2018

STATUS

approved