A304062 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

0, 61, 376, 5580, 79185, 1105513, 15790468, 223280583, 3167599806, 44921636772, 636902565140, 9032140947293, 128074347136150, 1816136639942716, 25753285123979094, 365187542346834275, 5178454500347438324

Offset

1,2

Comments

Column 5 of A304065.

Links

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

Example

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

Crossrefs

Cf. A304065.

Sequence in context: A357965 A353225 A189174 * A305454 A266134 A305019

Adjacent sequences: A304059 A304060 A304061 * A304063 A304064 A304065

Keyword

nonn

Author

R. H. Hardin, May 05 2018

Status

approved