A298176 Number of nX7 0..1 arrays with every element equal to 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 22, 8, 43, 73, 161, 181, 540, 1076, 2572, 5179, 11814, 27638, 63592, 145715, 332492, 772416, 1792330, 4152863, 9615009, 22287060, 51774292, 120261321, 279370852, 649021245, 1508490144, 3507212748, 8154848055, 18962917850, 44099995183

Offset

1,2

Comments

Column 7 of A298177.

Links

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

Example

Some solutions for n=7
..0..0..1..1..1..1..1. .0..0..1..0..1..1..1. .0..0..0..1..0..0..0
..0..1..0..0..0..0..1. .0..1..0..1..0..0..1. .1..0..1..0..1..1..0
..0..1..0..1..1..1..0. .0..1..0..1..0..1..0. .1..1..1..0..1..0..1
..0..1..0..1..0..0..1. .0..1..0..1..0..1..0. .1..0..1..0..0..0..1
..0..1..0..1..0..1..1. .0..1..0..1..0..1..0. .0..0..1..0..1..0..1
..1..0..0..1..0..1..0. .0..1..0..1..0..0..1. .1..0..1..0..1..1..0
..1..1..1..0..1..0..0. .0..0..1..0..1..1..1. .1..1..0..1..0..0..0

Crossrefs

Cf. A298177.

Sequence in context: A133682 A134911 A298145 * A113783 A298781 A058402

Adjacent sequences: A298173 A298174 A298175 * A298177 A298178 A298179

Keyword

nonn

Author

R. H. Hardin, Jan 14 2018

Status

approved