A298627 Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

0, 41, 611, 8617, 285085, 7087666, 193309200, 5247911837, 142315671147, 3877645294159, 105510015466842, 2873290228731054, 78240978697950981, 2130639664188207930, 58022611721225082405, 1580097104120035210877

Offset

1,2

Comments

Column 6 of A298629.

Links

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

Example

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

Crossrefs

Cf. A298629.

Sequence in context: A301399 A241622 A276251 * A078947 A299600 A197371

Adjacent sequences: A298624 A298625 A298626 * A298628 A298629 A298630

Keyword

nonn

Author

R. H. Hardin, Jan 23 2018

Status

approved