A300107 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 2048, 13268, 150416, 4330629, 96369782, 1781758380, 37174337571, 798263732216, 16561883290086, 344500596499596, 7229007746190893, 151282991464412266, 3161738527029049302, 66155375962564555781

Offset

1,1

Comments

Column 7 of A300108.

Links

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

Example

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

Crossrefs

Cf. A300108.

Sequence in context: A298388 A299306 A299464 * A139298 A004819 A001375

Adjacent sequences: A300104 A300105 A300106 * A300108 A300109 A300110

Keyword

nonn

Author

R. H. Hardin, Feb 25 2018

Status

approved