A298099 Number of nX7 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 8, 0, 42, 134, 2934, 16212, 273251, 2168179, 29643572, 283552252, 3490557521, 36211533806, 422269197029, 4562780449805, 51812772617177, 569858744707613, 6399889129565012, 70902808989036819, 792544973629119436

Offset

1,2

Comments

Column 7 of A298100.

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

Crossrefs

Cf. A298100.

Sequence in context: A197618 A340953 A047771 * A137528 A270006 A167318

Adjacent sequences: A298096 A298097 A298098 * A298100 A298101 A298102

Keyword

nonn

Author

R. H. Hardin, Jan 12 2018

Status

approved