A317158 Number of n X 6 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

13, 125, 165, 1245, 9686, 69701, 887617, 10940249, 123485236, 1595521378, 20618723023, 255809952162, 3259906353650, 41808594857313, 529860834412256, 6742319644440481, 86065457865270169, 1095494026766384304, 13947305892934024894, 177760685705870205346, 2264301851529604464429

Offset

1,1

Links

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

Example

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

Crossrefs

Column 6 of A317160.

Sequence in context: A305916 A134550 A316237 * A305647 A316923 A317041

Adjacent sequences: A317155 A317156 A317157 * A317159 A317160 A317161

Keyword

nonn

Author

R. H. Hardin, Jul 22 2018

Status

approved