A300207 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

64, 8192, 916061, 105708560, 12180207076, 1404241937017, 161892308617170, 18664492764362592, 2151821343856271110, 248082627699949131634, 28601348103095688080835, 3297438140691647751490978

Offset

1,1

Comments

Column 7 of A300208.

Links

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

Example

Some solutions for n=5
..0..0..0..0..1..0..1. .0..0..0..0..1..0..0. .0..0..0..0..1..0..1
..0..0..0..1..0..0..1. .0..0..0..1..1..0..1. .0..0..0..1..1..0..1
..0..0..0..1..0..1..0. .0..0..0..1..1..1..1. .0..0..0..1..0..1..1
..0..0..0..1..0..1..0. .0..0..0..0..0..1..0. .0..0..0..1..1..0..0
..0..0..0..0..1..1..0. .0..0..0..1..1..0..0. .0..0..0..1..1..1..1

Crossrefs

Cf. A300208.

Sequence in context: A316807 A317524 A299653 * A303420 A301406 A303426

Adjacent sequences: A300204 A300205 A300206 * A300208 A300209 A300210

Keyword

nonn

Author

R. H. Hardin, Feb 28 2018

Status

approved