A299088 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

64, 3440, 21484, 173524, 1598956, 14514670, 129999453, 1166134994, 10493701031, 94438101000, 849751415904, 7648233297772, 68841581935753, 619625217826871, 5577260749794146, 50202038501971691, 451878831715700135

Offset

1,1

Comments

Column 7 of A299089.

Links

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

Example

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

Crossrefs

Cf. A299089.

Sequence in context: A017439 A220744 A298194 * A299344 A299851 A299007

Adjacent sequences: A299085 A299086 A299087 * A299089 A299090 A299091

Keyword

nonn

Author

R. H. Hardin, Feb 02 2018

Status

approved