A316181 - OEIS

A316181

Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.

32, 1576, 11915, 134426, 1361115, 14569771, 157538845, 1721566496, 18934361346, 209066772947, 2314186683177, 25654420535892, 284661130869829, 3160378131607715, 35099396310364885, 389898512646862238

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 6 of A316183.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316183.

Sequence in context: A357571 A013994 A281953 * A305767 A317116 A305528

Adjacent sequences: A316178 A316179 A316180 * A316182 A316183 A316184

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 25 2018

STATUS

approved