A300886 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

13, 6, 57, 465, 5309, 47487, 437276, 3964190, 36386491, 334574086, 3073949150, 28264709588, 259824396464, 2388691266285, 21959166391857, 201876777233381, 1855891994460938, 17061657000422603, 156851812861991078

Offset

1,1

Comments

Column 6 of A300888.

Links

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

Example

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

Crossrefs

Cf. A300888.

Sequence in context: A268723 A300942 A160247 * A301496 A078438 A225954

Adjacent sequences: A300883 A300884 A300885 * A300887 A300888 A300889

Keyword

nonn

Author

R. H. Hardin, Mar 14 2018

Status

approved