A299140 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

5, 888, 43066, 1850266, 81988764, 3643124959, 161617794805, 7170422794173, 318133492126048, 14114785587679567, 626237253514871716, 27784560111505472054, 1232730529661461550436, 54693130285484874044208

Offset

1,1

Comments

Column 6 of A299142.

Links

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

Example

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

Crossrefs

Cf. A299142.

Sequence in context: A206356 A298278 A299371 * A299935 A299065 A299837

Adjacent sequences: A299137 A299138 A299139 * A299141 A299142 A299143

Keyword

nonn

Author

R. H. Hardin, Feb 03 2018

Status

approved