A298711 Number of nX7 0..1 arrays with every element equal to 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

0, 125, 22, 110, 2409, 9586, 17377, 241249, 1201122, 6055242, 45702804, 299335380, 1843128506, 13177259868, 89426659750, 604369128394, 4250651593956, 29338538378352, 203129511477403, 1429210885229805, 9929275442796545

Offset

1,2

Comments

Column 7 of A298712.

Links

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

Example

Some solutions for n=5
..0..1..1..1..0..1..1. .0..0..1..1..0..0..1. .0..1..0..1..1..0..0
..1..0..1..1..0..1..1. .1..1..1..1..0..0..1. .0..1..0..1..1..0..0
..1..1..1..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..1..1..1
..1..1..1..1..0..1..1. .0..0..1..1..0..0..1. .0..1..0..1..1..1..1
..0..0..1..1..0..1..1. .1..1..1..1..0..0..1. .0..1..0..1..1..0..0

Crossrefs

Cf. A298712.

Sequence in context: A174733 A100579 A298062 * A088403 A077495 A030668

Adjacent sequences: A298708 A298709 A298710 * A298712 A298713 A298714

Keyword

nonn

Author

R. H. Hardin, Jan 25 2018

Status

approved