A299885 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

21, 348, 573, 21500, 154308, 2596017, 56762816, 870847276, 16820882455, 334127184165, 6117957476863, 118129064629120, 2309410714735902, 43859374006911583, 847086310317853225, 16421961385399892746

Offset

1,1

Comments

Column 7 of A299886.

Links

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

Example

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

Crossrefs

Cf. A299886.

Sequence in context: A298229 A298153 A299127 * A299051 A299813 A299688

Adjacent sequences: A299882 A299883 A299884 * A299886 A299887 A299888

Keyword

nonn

Author

R. H. Hardin, Feb 21 2018

Status

approved