A317062 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

1, 82, 818, 17947, 384535, 8450612, 186574154, 4130997988, 91552460948, 2029900315901, 45014936960158, 998320456048265, 22140962657367587, 491053147928403065, 10890874435981167821, 241544937669336740880

Offset

1,2

Comments

Column 5 of A317065.

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

Crossrefs

Cf. A317065.

Sequence in context: A002309 A128959 A305682 * A230394 A316929 A317700

Adjacent sequences: A317059 A317060 A317061 * A317063 A317064 A317065

Keyword

nonn

Author

R. H. Hardin, Jul 20 2018

Status

approved