A298393 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

3, 23, 63, 432, 2231, 13271, 81019, 454822, 2647771, 15705120, 91017707, 531809890, 3122451308, 18251243783, 106758611022, 625185452829, 3659138751517, 21414194993312, 125344300498672, 733690661655699, 4294342754282802

Offset

1,1

Comments

Column 5 of A298396.

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

Crossrefs

Cf. A298396.

Sequence in context: A254626 A362540 A262769 * A299511 A299311 A300112

Adjacent sequences: A298390 A298391 A298392 * A298394 A298395 A298396

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved