A305172 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

0, 61, 151, 2397, 26810, 218476, 2416954, 24233688, 237639509, 2429155315, 24360874362, 244522505849, 2465702994696, 24788839212509, 249376612320572, 2509728224487988, 25247553641968775, 254025481919344502

Offset

1,2

Comments

Column 5 of A305175.

Links

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

Example

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

Crossrefs

Cf. A305175.

Sequence in context: A140726 A051646 A142320 * A316760 A211333 A252811

Adjacent sequences: A305169 A305170 A305171 * A305173 A305174 A305175

Keyword

nonn

Author

R. H. Hardin, May 26 2018

Status

approved