A317001 Number of n X 5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

16, 420, 4905, 65047, 854383, 11158663, 146589898, 1924812465, 25259268302, 331644445546, 4353940658716, 57158649892483, 750406973765322, 9851614911662910, 129335524037159567, 1697967089691191749

Offset

1,1

Comments

Column 5 of A317004.

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..0..0..0..0. .0..0..0..0..0
..0..0..0..0..1. .0..0..1..0..1. .1..1..0..0..1. .0..0..1..0..0
..1..0..0..0..1. .1..0..0..0..1. .1..1..1..1..1. .0..0..0..0..0
..1..1..0..1..1. .1..1..0..0..0. .1..1..1..0..0. .1..1..0..1..0
..1..1..1..0..1. .0..1..1..1..1. .0..1..0..1..1. .1..1..1..0..1

Crossrefs

Cf. A317004.

Sequence in context: A305766 A317115 A305527 * A316819 A317569 A268053

Adjacent sequences: A316998 A316999 A317000 * A317002 A317003 A317004

Keyword

nonn

Author

R. H. Hardin, Jul 18 2018

Status

approved