A299666 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

32, 1841, 40023, 974646, 24665530, 615314145, 15351583824, 384274120067, 9615094296606, 240555736495426, 6019667561802190, 150639005352591657, 3769627665367430496, 94333408395773456126, 2360665732453296815773

Offset

1,1

Comments

Column 6 of A299668.

Links

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

Example

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

Crossrefs

Cf. A299668.

Sequence in context: A299842 A298999 A299744 * A300257 A248073 A264015

Adjacent sequences: A299663 A299664 A299665 * A299667 A299668 A299669

Keyword

nonn

Author

R. H. Hardin, Feb 15 2018

Status

approved