A299185 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

32, 137, 83, 401, 1442, 3773, 12847, 48408, 157805, 562522, 2057541, 7039840, 25174801, 91158763, 318102256, 1134299958, 4083010670, 14386161345, 51212037306, 183601965542, 650165124338, 2313003043768, 8270512715806

Offset

1,1

Comments

Column 6 of A299187.

Links

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

Example

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

Crossrefs

Cf. A299187.

Sequence in context: A298492 A298292 A299386 * A299946 A137740 A221597

Adjacent sequences: A299182 A299183 A299184 * A299186 A299187 A299188

Keyword

nonn

Author

R. H. Hardin, Feb 04 2018

Status

approved