A297753 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.

1, 55, 1142, 5396, 34159, 462187, 5298077, 43194128, 385972633, 4020326488, 40220051566, 375700058405, 3584797181312, 35258593868977, 343502393704433, 3301791617684387, 31887635080666436, 309801630728987629

Offset

1,2

Comments

Row 5 of A297749.

Links

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

Example

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

Crossrefs

Cf. A297749.

Sequence in context: A281073 A329753 A203872 * A134291 A157096 A264467

Adjacent sequences: A297750 A297751 A297752 * A297754 A297755 A297756

Keyword

nonn

Author

R. H. Hardin, Jan 05 2018

Status

approved