A317434 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

5, 333, 3666, 39216, 594763, 8362442, 113897676, 1604462254, 22617426590, 316328706838, 4434563566043, 62265370139101, 873270000932177, 12247261303525548, 171818884612080696, 2410224437403048310

Offset

1,1

Comments

Column 6 of A317436.

Links

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

Example

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

Crossrefs

Cf. A317436.

Sequence in context: A304695 A316446 A316128 * A029495 A086900 A200002

Adjacent sequences: A317431 A317432 A317433 * A317435 A317436 A317437

Keyword

nonn

Author

R. H. Hardin, Jul 27 2018

Status

approved