A302073 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

32, 2048, 31760, 636852, 12063625, 230634314, 4418931065, 84488922112, 1616938426482, 30932061148349, 591839309608541, 11324992647651763, 216720956926608684, 4147396167934309138, 79369479396301029533

Offset

1,1

Comments

Row 6 of A302069.

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

Crossrefs

Cf. A302069.

Sequence in context: A302270 A301846 A302969 * A302812 A303473 A208713

Adjacent sequences: A302070 A302071 A302072 * A302074 A302075 A302076

Keyword

nonn

Author

R. H. Hardin, Mar 31 2018

Status

approved