A317115 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

16, 420, 3398, 37221, 392393, 4237829, 45938893, 497129492, 5387633738, 58350081443, 632133529266, 6847527128492, 74177538970732, 803540864229906, 8704502381388118, 94293146311572133, 1021447666436460290

Offset

1,1

Comments

Column 5 of A317118.

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

Crossrefs

Cf. A317118.

Sequence in context: A281952 A316180 A305766 * A305527 A317001 A316819

Adjacent sequences: A317112 A317113 A317114 * A317116 A317117 A317118

Keyword

nonn

Author

R. H. Hardin, Jul 21 2018

Status

approved