A299386 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

32, 137, 72, 233, 531, 1002, 1852, 4200, 9436, 19203, 41599, 91092, 197402, 424019, 919358, 1989020, 4323198, 9366316, 20311318, 44113576, 95822090, 208017412, 451954480, 982013846, 2133836248, 4637095187, 10079156541, 21906394802

Offset

1,1

Comments

Column 6 of A299388.

Links

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

Example

Some solutions for n=7
..0..1..0..0..1..0. .0..0..0..1..1..1. .0..1..1..0..0..0. .0..1..0..1..0..1
..0..0..1..1..0..0. .1..1..1..1..1..0. .0..0..0..1..1..1. .0..1..1..0..0..1
..0..0..0..0..0..0. .0..0..0..1..1..0. .1..1..0..0..0..0. .0..1..1..1..0..0
..1..0..0..0..0..1. .1..0..0..0..0..1. .0..0..0..0..0..1. .1..0..0..0..0..0
..1..0..0..0..0..1. .0..1..0..0..0..1. .1..1..0..0..0..1. .0..1..0..0..0..1
..1..0..1..1..0..1. .0..1..0..0..0..0. .0..0..0..1..1..0. .0..1..0..0..0..1
..0..1..0..0..1..0. .0..1..0..1..1..1. .1..1..0..1..0..1. .0..1..0..1..1..0

Crossrefs

Cf. A299388.

Sequence in context: A297887 A298492 A298292 * A299185 A299946 A137740

Adjacent sequences: A299383 A299384 A299385 * A299387 A299388 A299389

Keyword

nonn

Author

R. H. Hardin, Feb 09 2018

Status

approved