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A297990 Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero. 1
3, 166, 424, 1446, 5100, 18189, 62390, 213997, 735000, 2520806, 8673171, 29895212, 103062319, 355448168, 1226378689, 4232831248, 14614818621, 50474934066, 174362780682, 602441004444, 2081828199132, 7195055390173, 24869853343749 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A297993.

LINKS

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

R. H. Hardin, Empirical recurrence of order 99

FORMULA

Empirical recurrence of order 99 (see link above)

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

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

CROSSREFS

Cf. A297993.

Sequence in context: A020545 A228193 A297820 * A298843 A298650 A299604

Adjacent sequences:  A297987 A297988 A297989 * A297991 A297992 A297993

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 10 2018

STATUS

approved

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Last modified December 6 06:14 EST 2021. Contains 349563 sequences. (Running on oeis4.)