A298218 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

16, 73, 89, 503, 2066, 6598, 30780, 125759, 498466, 2153157, 8854291, 36716124, 154630611, 641522869, 2677738287, 11204356400, 46682896140, 194912316404, 814236444189, 3397596012378, 14184233511277, 59227911018086

Offset

1,1

Comments

Column 5 of A298221.

Links

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

Example

Some solutions for n=7
..0..0..1..0..1. .0..0..0..0..0. .0..0..0..1..0. .0..1..0..1..1
..1..0..1..1..0. .1..1..1..1..1. .0..1..0..1..0. .1..0..0..1..0
..0..1..0..1..0. .0..1..1..0..1. .0..0..0..0..1. .0..1..1..1..0
..1..0..1..1..0. .0..0..1..0..0. .1..1..1..0..0. .1..0..1..1..0
..0..0..1..1..0. .1..1..1..1..1. .0..0..0..1..1. .1..0..1..0..1
..0..0..1..1..0. .0..1..0..0..1. .1..1..1..1..0. .0..1..1..1..0
..0..1..0..1..0. .0..1..0..1..1. .0..1..1..0..0. .0..1..0..1..0

Crossrefs

Cf. A298221.

Sequence in context: A363794 A098096 A329076 * A299347 A299094 A299876

Adjacent sequences: A298215 A298216 A298217 * A298219 A298220 A298221

Keyword

nonn

Author

R. H. Hardin, Jan 15 2018

Status

approved