A295095 Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.

9, 123, 1249, 14187, 158361, 1767431, 19730839, 220211372, 2459567704, 27461372975, 306610224608, 3423494664478, 38224982366034, 426799899112382, 4765433609340078, 53208437047534044, 594098283361810851

Offset

1,1

Comments

Column 6 of A295097.

Links

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

Example

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

Crossrefs

Cf. A295097.

Sequence in context: A087584 A199139 A365848 * A295549 A211101 A269627

Adjacent sequences: A295092 A295093 A295094 * A295096 A295097 A295098

Keyword

nonn

Author

R. H. Hardin, Nov 14 2017

Status

approved