A299513 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

8, 99, 477, 7702, 84449, 1190886, 17345466, 225351737, 3159884395, 44355410329, 607385669669, 8438451242502, 117327474563425, 1624496219433908, 22532992590634988, 312619027436720049, 4335373141403117615

Offset

1,1

Comments

Column 7 of A299514.

Links

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

Example

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

Crossrefs

Cf. A299514.

Sequence in context: A298581 A299573 A298395 * A299313 A300114 A180927

Adjacent sequences: A299510 A299511 A299512 * A299514 A299515 A299516

Keyword

nonn

Author

R. H. Hardin, Feb 11 2018

Status

approved