A296156 Number of n X 7 0..1 arrays with each 1 adjacent to 3 or 5 king-move neighboring 1's.

1, 37, 157, 585, 3775, 21087, 108933, 605121, 3383481, 18933967, 108596954, 621307251, 3596674404, 21361372274, 126467308667, 755919541074, 4613926900275, 28140294521457, 172868292897945, 1077086719344405

Offset

1,2

Comments

Column 7 of A296157.

Links

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

Example

Some solutions for n=7
..0..1..1..0..0..0..0. .0..0..0..0..0..0..0. .0..1..1..1..0..1..1
..0..1..1..0..1..1..0. .1..1..0..0..0..0..0. .0..1..1..1..0..1..1
..0..0..0..0..1..1..0. .1..1..0..0..0..0..0. .0..0..0..0..0..1..1
..0..0..1..0..0..0..0. .0..0..0..0..0..1..1. .0..0..0..0..0..1..1
..0..1..1..1..0..0..0. .0..0..0..0..0..1..1. .0..0..0..0..0..0..0
..1..1..1..0..0..1..1. .0..0..0..0..0..1..1. .1..1..1..0..1..1..1
..0..1..0..0..0..1..1. .0..0..0..0..0..1..1. .1..1..1..0..1..1..1

Crossrefs

Cf. A296157.

Sequence in context: A250943 A142197 A140011 * A250842 A374273 A083389

Adjacent sequences: A296153 A296154 A296155 * A296157 A296158 A296159

Keyword

nonn

Author

R. H. Hardin, Dec 06 2017

Status

approved