A300136 Number of nX6 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 9, 209, 667, 11439, 98708, 1118800, 12484789, 140924631, 1636476796, 18991672366, 222152488788, 2604478262489, 30586732068952, 359645169357434, 4231084454943952, 49798079089941221, 586232982245989122

Offset

1,2

Comments

Column 6 of A300138.

Links

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

Example

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

Crossrefs

Cf. A300138.

Sequence in context: A203364 A218887 A001535 * A274672 A122399 A320096

Adjacent sequences: A300133 A300134 A300135 * A300137 A300138 A300139

Keyword

nonn

Author

R. H. Hardin, Feb 26 2018

Status

approved