A299681 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

64, 353, 1561, 35408, 757628, 16311888, 346275749, 7835688567, 174961291252, 3809248499003, 84566775421376, 1882166540511231, 41496845711038178, 917772094681615114, 20350150011575449219, 450173173923201229651

Offset

1,1

Comments

Column 7 of A299682.

Links

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

Example

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

Crossrefs

Cf. A299682.

Sequence in context: A299878 A299014 A299805 * A300313 A137739 A281468

Adjacent sequences: A299678 A299679 A299680 * A299682 A299683 A299684

Keyword

nonn

Author

R. H. Hardin, Feb 16 2018

Status

approved