A298894 Number of nX7 0..1 arrays with every element equal to 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 34, 26, 229, 1858, 12224, 74725, 547497, 4012035, 28805843, 209118279, 1537327380, 11240705948, 82185225848, 602873376262, 4421261929905, 32410993796867, 237712768537660, 1743828733781802, 12791372365817836

Offset

1,2

Comments

Column 7 of A298895.

Links

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

Example

Some solutions for n=7
..0..0..1..1..0..0..0. .0..0..0..1..1..1..1. .0..0..1..0..0..1..1
..0..1..0..0..1..1..0. .0..0..0..1..1..1..1. .0..1..1..0..0..1..1
..0..1..0..1..1..1..0. .1..1..1..1..1..1..1. .1..0..0..1..0..0..0
..0..1..0..1..0..0..0. .1..1..1..1..0..0..0. .1..1..1..1..0..0..0
..0..1..0..1..0..1..0. .1..1..1..1..0..0..0. .1..0..1..1..1..1..1
..1..0..0..1..0..1..1. .1..1..1..1..0..0..0. .1..0..0..1..1..1..1
..1..1..1..1..0..0..1. .1..1..1..1..0..0..0. .1..1..0..1..1..1..1

Crossrefs

Cf. A298895.

Sequence in context: A133733 A214038 A070727 * A204632 A098023 A302209

Adjacent sequences: A298891 A298892 A298893 * A298895 A298896 A298897

Keyword

nonn

Author

R. H. Hardin, Jan 28 2018

Status

approved