A296385 - OEIS

A296385

Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1s.

37, 2728, 81661, 3372222, 138882856, 5498685275, 221204933878, 8887761158698, 356576134627608, 14315319558357738, 574677595957999964, 23068808260692029253, 926051656630306277098, 37174473698314395980970

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A296386.

LINKS

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

EXAMPLE

Some solutions for n=5

..0..0..0..0..0..0..1. .0..0..0..0..0..1..1. .0..0..0..0..1..1..1

..0..0..1..1..0..1..0. .0..0..0..1..0..0..1. .0..0..1..1..0..0..1

..0..0..0..0..0..0..0. .0..0..0..1..1..1..0. .0..0..0..0..1..0..0

..0..0..0..1..0..0..0. .0..0..0..0..0..0..0. .0..0..0..1..0..0..1

..0..0..0..1..1..1..1. .0..0..0..1..1..0..0. .0..0..0..1..0..1..0

CROSSREFS

Cf. A296386.

Sequence in context: A295846 A297719 A296738 * A296642 A295039 A295530

Adjacent sequences: A296382 A296383 A296384 * A296386 A296387 A296388

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 11 2017

STATUS

approved