A297949 Number of nX6 0..1 arrays with every element equal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

5, 604, 3079, 19561, 134642, 938557, 6423236, 44289957, 305715877, 2107842851, 14539629113, 100358074856, 692557160755, 4778987712641, 32981520600325, 227616103194905, 1570822561986655, 10840761116053551, 74815887145182594

Offset

1,1

Comments

Column 6 of A297951.

Links

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

Example

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

Crossrefs

Cf. A297951.

Sequence in context: A302951 A208298 A216077 * A298558 A298768 A299565

Adjacent sequences: A297946 A297947 A297948 * A297950 A297951 A297952

Keyword

nonn

Author

R. H. Hardin, Jan 09 2018

Status

approved