A296333 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s.

21, 286, 2895, 34224, 392230, 4476519, 51335713, 587914968, 6733523523, 77127831438, 883416333583, 10118643744099, 115898953294898, 1327506562669956, 15205261038425905, 174161077313606869

Offset

1,1

Comments

Column 6 of A296335.

Links

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

Example

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

Crossrefs

Cf. A296335.

Sequence in context: A176711 A025987 A125456 * A028028 A296633 A025971

Adjacent sequences: A296330 A296331 A296332 * A296334 A296335 A296336

Keyword

nonn

Author

R. H. Hardin, Dec 10 2017

Status

approved