A300603 Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 42, 89, 394, 2394, 16629, 110249, 729292, 4931949, 33688331, 227576010, 1542214484, 10470390642, 71030350954, 481810503725, 3269006885450, 22179699829029, 150481131390602, 1020964668122599, 6926992861786559

Offset

1,2

Comments

Column 6 of A300605.

Links

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

Example

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

Crossrefs

Cf. A300605.

Sequence in context: A019283 A331365 A369275 * A301328 A370521 A067296

Adjacent sequences: A300600 A300601 A300602 * A300604 A300605 A300606

Keyword

nonn

Author

R. H. Hardin, Mar 09 2018

Status

approved