A302085 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

32, 233, 1323, 3914, 13712, 124046, 893236, 5075048, 30184552, 198157498, 1287642095, 8192987077, 52438649592, 338298087953, 2185778158055, 14123703379050, 91373380890604, 591855807210660, 3835940155437812

Offset

1,1

Comments

Row 6 of A302081.

Links

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

Example

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

Crossrefs

Cf. A302081.

Sequence in context: A301968 A208641 A301889 * A229400 A223250 A250748

Adjacent sequences: A302082 A302083 A302084 * A302086 A302087 A302088

Keyword

nonn

Author

R. H. Hardin, Mar 31 2018

Status

approved