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A316444 Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
2, 45, 182, 946, 5256, 26592, 139705, 743357, 3895564, 20551990, 108462086, 571420486, 3013738375, 15893704443, 83803905400, 441952817246, 2330642013397, 12290475240990, 64814511670451, 341801050087962, 1802496248933719 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A316448.

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

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

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

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

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

CROSSREFS

Cf. A316448.

Sequence in context: A302666 A304693 A200158 * A316126 A317432 A302468

Adjacent sequences:  A316441 A316442 A316443 * A316445 A316446 A316447

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 03 2018

STATUS

approved

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Last modified August 5 13:54 EDT 2021. Contains 346469 sequences. (Running on oeis4.)