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A305914 Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1
5, 21, 27, 101, 347, 1129, 4982, 23181, 101615, 481454, 2332962, 11031069, 52713092, 254276678, 1219410066, 5849035794, 28135957701, 135212478429, 649485620674, 3121936522853, 15005508174783, 72108968570806, 346566325528536 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A305918.

LINKS

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

R. H. Hardin, Empirical recurrence of order 66

FORMULA

Empirical recurrence of order 66 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305918.

Sequence in context: A351325 A303965 A304351 * A303036 A305343 A186304

Adjacent sequences: A305911 A305912 A305913 * A305915 A305916 A305917

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 14 2018

STATUS

approved

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Last modified February 1 12:28 EST 2023. Contains 359993 sequences. (Running on oeis4.)