A298381 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

1, 130, 200, 1502, 12982, 94292, 682833, 5489368, 43729967, 338622211, 2701303036, 21549495059, 171045426415, 1363643670602, 10880013007248, 86778764601030, 692319891192971, 5525776843276263, 44104027596135023, 352017919085525224

Offset

1,2

Comments

Column 7 of A298382.

Links

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

Example

Some solutions for n=6
..0..0..1..1..1..0..0. .0..0..1..0..0..0..0. .0..0..0..0..0..1..0
..1..0..1..1..1..0..1. .0..1..1..0..1..1..0. .0..1..1..1..0..0..0
..1..1..0..1..0..1..1. .1..0..0..0..0..1..1. .0..1..0..0..1..0..1
..1..0..1..1..0..0..0. .1..1..1..1..1..0..1. .0..0..0..1..1..0..0
..0..0..1..1..1..0..0. .0..0..0..1..0..0..1. .0..1..0..0..1..0..1
..0..1..1..0..1..0..0. .1..0..1..1..1..1..1. .1..1..1..1..0..0..0

Crossrefs

Cf. A298382.

Sequence in context: A050238 A115937 A365833 * A299248 A299457 A300095

Adjacent sequences: A298378 A298379 A298380 * A298382 A298383 A298384

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved