A299611 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 95, 63, 322, 1006, 3286, 13490, 49047, 183585, 713699, 2714170, 10378456, 39704472, 151771262, 581376350, 2226003287, 8517881481, 32604243139, 124809117768, 477707469245, 1828508432121, 6999126323813, 26790197380901

Offset

1,1

Comments

Column 7 of A299612.

Links

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

Example

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

Crossrefs

Cf. A299612.

Sequence in context: A298054 A298887 A298659 * A099298 A182648 A003775

Adjacent sequences: A299608 A299609 A299610 * A299612 A299613 A299614

Keyword

nonn

Author

R. H. Hardin, Feb 14 2018

Status

approved