A298292 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

32, 137, 72, 233, 515, 990, 1798, 4079, 9026, 18246, 39612, 86150, 184768, 396522, 854978, 1840676, 3976611, 8577126, 18505102, 40008385, 86432218, 186718489, 403706444, 872806433, 1886931887, 4080348203, 8825031925, 19084949119

Offset

1,1

Comments

Column 6 of A298294.

Links

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

Example

Some solutions for n=7
..0..1..1..1..1..0. .0..1..1..0..1..1. .0..0..1..0..1..1. .0..1..0..1..0..1
..1..0..0..0..0..1. .0..0..1..0..1..0. .1..0..1..0..0..0. .0..1..1..0..1..0
..0..1..0..0..1..0. .0..0..1..1..1..0. .1..0..0..0..1..1. .0..1..1..1..1..0
..0..1..0..0..1..0. .1..0..1..1..0..1. .0..0..1..0..1..0. .0..1..0..1..1..0
..0..1..0..1..1..1. .0..1..0..0..0..0. .1..1..0..0..1..1. .0..1..1..0..1..0
..1..1..1..1..0..0. .1..0..1..0..1..1. .0..1..1..0..0..0. .0..1..1..1..0..1
..0..0..1..1..1..0. .0..0..1..0..1..0. .0..1..0..1..1..0. .1..0..0..0..1..0

Crossrefs

Cf. A298294.

Sequence in context: A304380 A297887 A298492 * A299386 A299185 A299946

Adjacent sequences: A298289 A298290 A298291 * A298293 A298294 A298295

Keyword

nonn

Author

R. H. Hardin, Jan 16 2018

Status

approved