A300088 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

21, 64, 19, 359, 3089, 13646, 167131, 1179926, 7203918, 75245386, 508116867, 3750027371, 34007995888, 237070967056, 1896875784101, 15835534124727, 116172506766693, 951502244265963, 7649922105057405, 58629569564622365

Offset

1,1

Comments

Column 7 of A300089.

Links

R. H. Hardin, Table of n, a(n) for n = 1..141

Example

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

Crossrefs

Cf. A300089.

Sequence in context: A072395 A113781 A299450 * A033481 A041862 A041860

Adjacent sequences: A300085 A300086 A300087 * A300089 A300090 A300091

Keyword

nonn

Author

R. H. Hardin, Feb 24 2018

Status

approved