A298136 Number of n X 5 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

0, 11, 0, 20, 88, 242, 627, 2604, 8137, 28727, 101137, 350450, 1221711, 4290711, 14968081, 52427734, 183691236, 643194452, 2252416158, 7891461835, 27639419217, 96818359023, 339160988868, 1188063187221, 4161765906348, 14578893452507

Offset

1,2

Comments

Column 5 of A298139.

Links

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

Example

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

Crossrefs

Cf. A298139.

Sequence in context: A186072 A299780 A297873 * A334370 A274851 A075360

Adjacent sequences: A298133 A298134 A298135 * A298137 A298138 A298139

Keyword

nonn

Author

R. H. Hardin, Jan 13 2018

Status

approved