A296112 Number of nX5 0..1 arrays with each 1 adjacent to 3 or 4 king-move neighboring 1s.

1, 8, 26, 64, 503, 2800, 14057, 106920, 726414, 4754059, 34128075, 239110536, 1659205332, 11741639971, 82670906105, 580742887850, 4096686036016, 28868334349248, 203319450955099, 1433261257604415, 10101271316316501

Offset

1,2

Comments

Column 5 of A296115.

Links

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

R. H. Hardin, Empirical recurrence of order 89

Formula

Empirical recurrence of order 89 (see link above)

Example

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

Crossrefs

Cf. A296115.

Sequence in context: A301647 A050471 A088024 * A051669 A207101 A027004

Adjacent sequences: A296109 A296110 A296111 * A296113 A296114 A296115

Keyword

nonn

Author

R. H. Hardin, Dec 04 2017

Status

approved