A299190 Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 13, 9, 80, 220, 518, 2466, 8609, 26954, 108253, 391026, 1364326, 5142635, 18805585, 67927770, 251558219, 923421565, 3375978025, 12442380432, 45744080554, 167955473490, 618311475706, 2274757925559, 8365332143494

Offset

1,1

Comments

Column 4 of A299194.

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

Crossrefs

Cf. A299194.

Sequence in context: A175484 A210694 A298316 * A156682 A089534 A116981

Adjacent sequences: A299187 A299188 A299189 * A299191 A299192 A299193

Keyword

nonn

Author

R. H. Hardin, Feb 04 2018

Status

approved