A296154 Number of nX5 0..1 arrays with each 1 adjacent to 3 or 5 king-move neighboring 1s.

1, 12, 34, 91, 341, 1150, 3775, 12798, 43185, 146144, 496975, 1685293, 5733213, 19630054, 67034730, 229187984, 789025247, 2711161293, 9321029923, 32243259039, 111388360866, 385009855193, 1337512050410, 4642429370845, 16123380213682

Offset

1,2

Comments

Column 5 of A296157.

Links

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

Example

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

Crossrefs

Cf. A296157.

Sequence in context: A142245 A139635 A124705 * A126366 A199114 A009760

Adjacent sequences: A296151 A296152 A296153 * A296155 A296156 A296157

Keyword

nonn

Author

R. H. Hardin, Dec 06 2017

Status

approved