A298130 Number of nX5 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

0, 10, 62, 233, 2621, 21537, 175014, 1557284, 13225388, 115057043, 995377715, 8609735775, 74634586211, 646239250543, 5597827267858, 48490327697080, 420018142359036, 3638291956178446, 31515344567810130, 272991120320041375

Offset

1,2

Comments

Column 5 of A298133.

Links

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

Example

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

Crossrefs

Cf. A298133.

Sequence in context: A321386 A015867 A297863 * A106629 A240157 A350644

Adjacent sequences: A298127 A298128 A298129 * A298131 A298132 A298133

Keyword

nonn

Author

R. H. Hardin, Jan 13 2018

Status

approved