A317869 Number of n X 6 0..1 arrays with every element unequal to 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

0, 9, 5, 301, 759, 4692, 27620, 167100, 990871, 5767582, 34467346, 203674546, 1206110614, 7137827421, 42235987862, 250140435209, 1480277735704, 8764187430062, 51874060277424, 307091476309195, 1817808068703891

Offset

1,2

Comments

Column 6 of A317871.

Links

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

Example

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

Crossrefs

Cf. A317871.

Sequence in context: A035417 A038295 A206771 * A103362 A252245 A263177

Adjacent sequences: A317866 A317867 A317868 * A317870 A317871 A317872

Keyword

nonn

Author

R. H. Hardin, Aug 09 2018

Status

approved