A316510 - OEIS

A316510

Number of nX7 0..1 arrays with every element unequal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 702, 22187, 1999511, 154346491, 12391266721, 990266635029, 79268327832419, 6344959753540191, 507911595926565716, 40658609887566331758, 3254760936056410385571, 260547032484097554405316

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

OFFSET

1,2

COMMENTS

Column 7 of A316511.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316511.

Sequence in context: A305021 A316685 A304766 * A317464 A035852 A214486

Adjacent sequences: A316507 A316508 A316509 * A316511 A316512 A316513

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 05 2018

STATUS

approved