A296586 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.

21, 480, 6241, 125765, 2607478, 52756072, 1109882746, 23359296497, 492457987101, 10402250973413, 219775565244891, 4644590743236824, 98165206674288770, 2074840058451866478, 43855171635171730011, 926958389641748039690

Offset

1,1

Comments

Column 6 of A296588.

Links

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

Example

Some solutions for n=4
..0..1..0..0..1..0. .0..1..1..1..1..1. .0..1..0..0..1..0. .0..1..0..0..0..1
..1..1..0..0..0..1. .1..0..0..1..0..1. .0..0..0..0..0..0. .0..0..1..1..0..0
..1..0..0..0..0..0. .1..1..0..0..0..1. .0..0..0..0..0..1. .1..0..1..0..1..1
..0..0..0..1..0..0. .1..0..0..0..1..1. .1..0..0..0..0..0. .0..0..1..1..1..0

Crossrefs

Cf. A296588.

Sequence in context: A158603 A307600 A025603 * A269922 A006298 A089907

Adjacent sequences: A296583 A296584 A296585 * A296587 A296588 A296589

Keyword

nonn

Author

R. H. Hardin, Dec 16 2017

Status

approved