A299397 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

8, 2907, 124972, 4442111, 166665723, 6375889022, 242153450727, 9202140590865, 349916213368020, 13303827578632449, 505801858086375486, 19230927942036227361, 731172536093629672680, 27799589587536236584493

Offset

1,1

Comments

Column 7 of A299398.

Links

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

Example

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

Crossrefs

Cf. A299398.

Sequence in context: A297922 A298546 A298336 * A299227 A300039 A282187

Adjacent sequences: A299394 A299395 A299396 * A299398 A299399 A299400

Keyword

nonn

Author

R. H. Hardin, Feb 09 2018

Status

approved