A299333 Number of n X 7 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

0, 104, 4258, 214683, 14783424, 967671172, 65181402152, 4383565657986, 295419024896953, 19926814221917058, 1344338852840125793, 90711097292403927280, 6121140631696358276769, 413063353638750786227404

Offset

1,2

Comments

Column 7 of A299334.

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..1. .0..0..0..1..0..1..1. .0..0..0..0..1..1..1
..0..0..1..1..0..0..1. .0..0..1..1..0..0..1. .0..0..1..1..0..0..1
..0..0..1..1..1..0..1. .0..0..0..0..1..0..1. .0..0..1..1..1..0..0
..0..0..0..1..0..1..0. .0..0..1..1..0..1..1. .0..0..0..0..1..1..1
..0..0..0..0..1..0..0. .0..0..0..1..1..1..1. .0..0..0..0..1..1..1

Crossrefs

Cf. A299334.

Sequence in context: A299553 A187530 A185741 * A007267 A300174 A250668

Adjacent sequences: A299330 A299331 A299332 * A299334 A299335 A299336

Keyword

nonn

Author

R. H. Hardin, Feb 07 2018

Status

approved