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A316451 Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
2, 10, 23, 48, 229, 850, 3223, 10880, 45692, 175031, 633752, 2571686, 9904681, 37484676, 148315504, 573843418, 2209226947, 8646079404, 33532139222, 129892215361, 506136051248, 1965179506521, 7628724478673, 29676160150437 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A316455.

LINKS

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

R. H. Hardin, Empirical recurrence of order 67

FORMULA

Empirical recurrence of order 67 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316455.

Sequence in context: A284360 A255606 A293403 * A120845 A293412 A224837

Adjacent sequences:  A316448 A316449 A316450 * A316452 A316453 A316454

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 03 2018

STATUS

approved

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Last modified September 20 01:58 EDT 2019. Contains 327207 sequences. (Running on oeis4.)