A299600 Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

0, 41, 643, 8825, 290941, 7242300, 197267780, 5361395737, 145483752329, 3967501801875, 108056245933580, 2945382311407345, 80280991663438095, 2188285778767050105, 59649714509340772403, 1625968798143776296993

Offset

1,2

Comments

Column 6 of A299602.

Links

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

Example

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

Crossrefs

Cf. A299602.

Sequence in context: A276251 A298627 A078947 * A197371 A268748 A143010

Adjacent sequences: A299597 A299598 A299599 * A299601 A299602 A299603

Keyword

nonn

Author

R. H. Hardin, Feb 14 2018

Status

approved