A299813 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

21, 348, 1721, 80892, 1087487, 32361748, 1009387819, 26528688317, 792668582776, 24191134044445, 699396964641140, 20923257773949493, 627958428752424556, 18573084830155379927, 554393761558371307722, 16555588589716910431455

Offset

1,1

Comments

Column 7 of A299814.

Links

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

Example

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

Crossrefs

Cf. A299814.

Sequence in context: A299127 A299885 A299051 * A299688 A300320 A271633

Adjacent sequences: A299810 A299811 A299812 * A299814 A299815 A299816

Keyword

nonn

Author

R. H. Hardin, Feb 19 2018

Status

approved