A298724 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

1, 31, 21, 77, 336, 1041, 3676, 12970, 45311, 162322, 581460, 2074761, 7425880, 26606520, 95200209, 340938956, 1221189411, 4373317686, 15664416165, 56107953172, 200965985895, 719842577248, 2578420648657, 9235682972244

Offset

1,2

Comments

Column 5 of A298727.

Links

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

Example

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

Crossrefs

Cf. A298727.

Sequence in context: A298551 A066434 A040932 * A299558 A348624 A340744

Adjacent sequences: A298721 A298722 A298723 * A298725 A298726 A298727

Keyword

nonn

Author

R. H. Hardin, Jan 25 2018

Status

approved