A298098 Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 5, 3, 20, 70, 847, 2934, 27671, 139992, 1031816, 5985115, 41326422, 252034826, 1675068288, 10527431309, 68645440055, 436700979975, 2826143858103, 18075619384704, 116539777329390, 747352195049649, 4809997865329487

Offset

1,2

Comments

Column 6 of A298100.

Links

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

Example

Some solutions for n=7
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..0..0..0..0. .0..0..1..1..0..0
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0
..0..1..1..0..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..0..0..0
..0..1..1..1..0..0. .1..1..1..0..1..0. .0..1..1..0..0..0. .0..1..1..1..0..0
..0..0..1..1..1..0. .1..1..0..1..0..1. .1..0..0..0..1..1. .1..0..0..1..0..0
..0..0..1..1..0..0. .1..1..0..0..1..1. .1..1..0..0..1..1. .1..1..0..0..1..1
..0..0..1..1..0..0. .1..1..0..0..1..1. .1..1..1..1..1..1. .1..1..0..0..1..1

Crossrefs

Cf. A298100.

Sequence in context: A101367 A338790 A256565 * A248256 A369039 A049457

Adjacent sequences: A298095 A298096 A298097 * A298099 A298100 A298101

Keyword

nonn

Author

R. H. Hardin, Jan 12 2018

Status

approved