A298084 Number of nX5 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 11, 1, 28, 154, 520, 1574, 7204, 28790, 105055, 437163, 1792603, 6981116, 28580319, 115795593, 464405679, 1883192839, 7625910371, 30781567549, 124586304213, 504301473498, 2038932788749, 8250005089404, 33384996732923

Offset

1,2

Comments

Column 5 of A298087.

Links

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

Example

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

Crossrefs

Cf. A298087.

Sequence in context: A014467 A174221 A194039 * A275304 A245677 A182041

Adjacent sequences: A298081 A298082 A298083 * A298085 A298086 A298087

Keyword

nonn

Author

R. H. Hardin, Jan 12 2018

Status

approved