A296987 Number of nX5 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s.

1, 14, 98, 440, 5487, 65694, 639327, 7181983, 81977832, 899417346, 10025228965, 112369921695, 1251982849712, 13967374032572, 156011740249219, 1741206394216305, 19433844437183025, 216950572251648645

Offset

1,2

Comments

Column 5 of A296990.

Links

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

Example

Some solutions for n=6
..1..1..0..1..1. .1..1..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..1..1..0..1..1. .1..1..1..1..0. .0..0..1..0..0. .0..1..1..0..0
..1..0..0..1..1. .0..1..0..1..1. .0..1..1..1..0. .0..1..1..0..0
..1..1..1..0..0. .1..1..0..0..1. .1..0..0..0..1. .1..0..0..1..0
..1..1..0..1..1. .0..1..0..1..1. .1..1..0..1..1. .1..1..0..1..1
..0..0..1..1..1. .0..0..1..1..0. .0..1..1..1..1. .1..1..1..1..1

Crossrefs

Cf. A296990.

Sequence in context: A308821 A274724 A254469 * A008534 A008415 A003206

Adjacent sequences: A296984 A296985 A296986 * A296988 A296989 A296990

Keyword

nonn

Author

R. H. Hardin, Dec 22 2017

Status

approved