A296632 Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.

13, 116, 966, 8042, 67488, 565149, 4733229, 39643699, 332039800, 2781020167, 23292631589, 195089090524, 1633982501009, 13685536174581, 114624177899429, 960042923203637, 8040907522705536, 67347190658614033, 564071166944280481

Offset

1,1

Comments

Column 5 of A296635.

Links

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

Example

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

Crossrefs

Cf. A296635.

Sequence in context: A232319 A296332 A021034 * A250316 A250557 A022737

Adjacent sequences: A296629 A296630 A296631 * A296633 A296634 A296635

Keyword

nonn

Author

R. H. Hardin, Dec 17 2017

Status

approved