A299837 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

5, 888, 54611, 2853873, 156175241, 8606994457, 473261273932, 26017342950926, 1430440832008036, 78646438018436538, 4324006434004007728, 237735246967446346695, 13070761700611946834990, 718634755662375911880645

Offset

1,1

Comments

Column 6 of A299839.

Links

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

Example

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

Crossrefs

Cf. A299839.

Sequence in context: A299140 A299935 A299065 * A299726 A094630 A284637

Adjacent sequences: A299834 A299835 A299836 * A299838 A299839 A299840

Keyword

nonn

Author

R. H. Hardin, Feb 20 2018

Status

approved