A302210 Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 65, 22, 80, 281, 1395, 8756, 43128, 234170, 1294490, 7086959, 38970702, 215045749, 1186180072, 6546201483, 36141119314, 199545542832, 1101845565725, 6084429873748, 33599148008180, 185542430499264, 1024617396401798

Offset

1,2

Comments

Column 6 of A302212.

Links

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

Example

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

Crossrefs

Cf. A302212.

Sequence in context: A279290 A034061 A113696 * A094378 A033385 A275484

Adjacent sequences: A302207 A302208 A302209 * A302211 A302212 A302213

Keyword

nonn

Author

R. H. Hardin, Apr 03 2018

Status

approved