A298387 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

5, 604, 3387, 26926, 384118, 3935913, 38706835, 445387553, 4869394793, 51744525546, 569151489101, 6237785819571, 67664627100820, 738872699452020, 8077145944657670, 88048395398145403, 960752441012887207

Offset

1,1

Comments

Column 6 of A298389.

Links

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

Example

Some solutions for n=4
..0..0..1..0..0..1. .0..1..1..1..0..1. .0..0..1..1..1..0. .0..1..0..1..0..0
..1..0..1..1..1..0. .1..0..0..0..1..0. .0..1..0..1..0..1. .0..1..0..1..1..1
..1..1..1..1..0..0. .0..1..1..1..0..0. .0..1..1..0..1..0. .0..1..1..1..1..0
..1..0..0..1..1..1. .1..0..0..0..1..0. .1..0..0..0..0..1. .1..0..0..1..0..1

Crossrefs

Cf. A298389.

Sequence in context: A298558 A298768 A299565 * A299305 A299463 A300106

Adjacent sequences: A298384 A298385 A298386 * A298388 A298389 A298390

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved