A299892 - OEIS

A299892

Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 1192, 13379, 667784, 32244900, 1611352289, 85265831295, 4488446180581, 238899914350593, 12714866028449671, 677676156616780340, 36132787930772201215, 1926793695950966129321, 102759889986508116155856

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

OFFSET

1,2

COMMENTS

Column 7 of A299893.

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

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

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

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

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

CROSSREFS

Cf. A299893.

Sequence in context: A298239 A299365 A299134 * A299059 A299820 A251169

Adjacent sequences: A299889 A299890 A299891 * A299893 A299894 A299895

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 21 2018

STATUS

approved