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A317149 Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1
8, 28, 102, 416, 2313, 10682, 49746, 244887, 1177228, 5627176, 27191679, 131066702, 630509899, 3039081334, 14646383331, 70553902114, 339981134313, 1638328386371, 7894211192665, 38039938958253, 183306173610271, 883299222702849 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A317153.

LINKS

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

R. H. Hardin, Empirical recurrence of order 69

FORMULA

Empirical recurrence of order 69 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317153.

Sequence in context: A305907 A110687 A153365 * A316879 A220710 A260935

Adjacent sequences:  A317146 A317147 A317148 * A317150 A317151 A317152

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 22 2018

STATUS

approved

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Last modified September 21 07:28 EDT 2021. Contains 347596 sequences. (Running on oeis4.)