A298086 - OEIS

A298086

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

0, 34, 18, 213, 1574, 11202, 65218, 479206, 3481050, 24695892, 177272585, 1292781132, 9346339114, 67597407637, 490930663188, 3562917786488, 25842902976432, 187580825378770, 1361838171557890, 9885195460409937

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

OFFSET

1,2

COMMENTS

Column 7 of A298087.

LINKS

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

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

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

CROSSREFS

Cf. A298087.

Sequence in context: A301826 A033354 A033972 * A114031 A133733 A214038

Adjacent sequences: A298083 A298084 A298085 * A298087 A298088 A298089

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2018

STATUS

approved