A299946 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 137, 83, 401, 1604, 4604, 19269, 79664, 307083, 1300811, 5389498, 21656467, 90844659, 377188450, 1535884924, 6395385562, 26547019499, 108823497559, 451305781478, 1871506391092, 7700799334508, 31873032044596, 132044406452363

Offset

1,1

Comments

Column 6 of A299948.

Links

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

Example

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

Crossrefs

Cf. A299948.

Sequence in context: A298292 A299386 A299185 * A137740 A221597 A159763

Adjacent sequences: A299943 A299944 A299945 * A299947 A299948 A299949

Keyword

nonn

Author

R. H. Hardin, Feb 22 2018

Status

approved