A300087 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

13, 32, 6, 98, 533, 1822, 13646, 64560, 292356, 1935206, 8977877, 47025964, 277252018, 1342509714, 7412660838, 41080319424, 209198027664, 1166155310631, 6311894489681, 33391174168101, 185469661266839, 1001589651401307

Offset

1,1

Comments

Column 6 of A300089.

Links

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

Example

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

Crossrefs

Cf. A300089.

Sequence in context: A238736 A087511 A299449 * A118513 A212757 A140678

Adjacent sequences: A300084 A300085 A300086 * A300088 A300089 A300090

Keyword

nonn

Author

R. H. Hardin, Feb 24 2018

Status

approved