A299349 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

64, 353, 451, 4767, 30814, 150748, 1262771, 8560581, 57300258, 426035059, 2967970785, 21004206056, 151233991720, 1069609810758, 7619801482207, 54418606606899, 386950658000779, 2757469957283930, 19654984493748915

Offset

1,1

Comments

Column 7 of A299350.

Links

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

Example

Some solutions for n=5
..0..1..1..0..0..0..1. .0..1..1..1..1..0..1. .0..1..0..0..0..0..1
..1..0..0..1..1..1..0. .1..0..0..0..0..1..1. .1..0..1..1..1..1..0
..0..0..0..1..1..1..0. .1..0..0..0..0..1..1. .0..0..1..1..1..1..0
..1..1..0..1..1..1..0. .1..0..0..0..0..1..1. .0..0..1..1..1..1..0
..0..0..1..0..0..0..1. .0..1..1..1..1..0..1. .0..1..0..0..0..0..1

Crossrefs

Cf. A299350.

Sequence in context: A061102 A016779 A298220 * A299096 A299878 A299014

Adjacent sequences: A299346 A299347 A299348 * A299350 A299351 A299352

Keyword

nonn

Author

R. H. Hardin, Feb 07 2018

Status

approved