A299609 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 23, 23, 85, 179, 453, 1006, 2523, 6002, 14802, 36299, 87591, 214486, 522937, 1275628, 3120041, 7614933, 18586581, 45384416, 110821038, 270585507, 660827950, 1613737854, 3940683638, 9622959317, 23498981429, 57383159995, 140126697433

Offset

1,1

Comments

Column 5 of A299612.

Links

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

Example

Some solutions for n=6
..0..1..0..0..0. .0..1..0..0..0. .0..1..1..0..1. .0..1..1..0..1
..0..0..1..1..1. .1..0..1..1..1. .1..0..0..0..1. .0..0..0..0..1
..0..0..0..0..0. .1..0..0..0..0. .1..0..0..0..1. .0..0..0..0..1
..1..0..0..0..1. .1..0..0..0..1. .0..0..0..0..0. .1..0..0..0..0
..1..0..0..0..1. .0..0..0..0..1. .0..0..1..1..1. .1..0..0..0..0
..1..0..1..1..0. .1..1..1..0..1. .0..1..0..0..0. .1..0..1..1..0

Crossrefs

Cf. A299612.

Sequence in context: A298052 A298885 A298657 * A238198 A178177 A353003

Adjacent sequences: A299606 A299607 A299608 * A299610 A299611 A299612

Keyword

nonn

Author

R. H. Hardin, Feb 14 2018

Status

approved