A316509 - OEIS

A316509

Number of nX6 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, 209, 3680, 172574, 7009503, 295326468, 12391266721, 520715439686, 21881306495563, 919547925683781, 38643892498510212, 1624012821148500317, 68249349054519078882, 2868189202630357397577, 120536098041003950386971

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

OFFSET

1,2

COMMENTS

Column 6 of A316511.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316511.

Sequence in context: A203040 A250951 A304765 * A317463 A029554 A203458

Adjacent sequences: A316506 A316507 A316508 * A316510 A316511 A316512

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 05 2018

STATUS

approved