A304899 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

5, 1145, 5562, 88308, 946723, 11067544, 132134627, 1529832969, 18095801753, 211780619943, 2486990894618, 29200151069057, 342613311609717, 4022482396043948, 47209439873468765, 554150814486328119

Offset

1,1

Comments

Column 6 of A304901.

Links

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

Example

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

Crossrefs

Cf. A304901.

Sequence in context: A330391 A303894 A305286 * A316581 A304595 A316381

Adjacent sequences: A304896 A304897 A304898 * A304900 A304901 A304902

Keyword

nonn

Author

R. H. Hardin, May 20 2018

Status

approved