A299464 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

8, 2048, 13268, 139226, 2991315, 41279802, 546467591, 8711452672, 130278485534, 1890309059942, 28489200483157, 427264160208569, 6342667405588230, 94802579756192769, 1418200510850008758, 21159682125398572853

Offset

1,1

Comments

Column 7 of A299465.

Links

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

Example

Some solutions for n=4
..0..0..0..1..1..1..0. .0..1..1..1..1..0..0. .0..1..0..1..0..0..0
..0..0..0..1..0..0..1. .0..1..0..0..0..0..1. .1..0..0..1..0..0..0
..0..0..0..0..1..1..0. .0..1..0..0..0..1..0. .0..0..0..0..0..0..0
..1..1..0..1..0..0..1. .0..1..0..0..0..1..0. .0..1..1..0..1..1..1

Crossrefs

Cf. A299465.

Sequence in context: A299566 A298388 A299306 * A300107 A139298 A004819

Adjacent sequences: A299461 A299462 A299463 * A299465 A299466 A299467

Keyword

nonn

Author

R. H. Hardin, Feb 10 2018

Status

approved