A296597 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.

21, 1785, 58251, 2271055, 91004329, 3553672817, 139547279602, 5483284264255, 215325152512080, 8456644209542369, 332127680070833366, 13043925893565344468, 512285988066386259951, 20119470378862894580835

Offset

1,1

Comments

Column 6 of A296599.

Links

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

Example

Some solutions for n=3
..1..0..0..1..1..1. .0..1..1..1..0..1. .1..0..0..1..0..1. .0..1..1..0..1..1
..1..0..1..0..0..0. .0..1..0..0..0..1. .1..1..1..0..1..1. .1..0..1..0..0..1
..1..1..0..0..0..0. .0..1..1..1..0..0. .0..1..0..0..0..1. .0..0..1..0..1..0

Crossrefs

Cf. A296599.

Sequence in context: A221497 A155740 A278776 * A203327 A297652 A243664

Adjacent sequences: A296594 A296595 A296596 * A296598 A296599 A296600

Keyword

nonn

Author

R. H. Hardin, Dec 16 2017

Status

approved