A297976 Number of nX6 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

0, 41, 501, 7302, 242401, 5902043, 160132152, 4278426570, 114579985316, 3078417275234, 82613395464242, 2218732121018357, 59580905323296527, 1600059673902940527, 42970519994379100116, 1153998005366236164440

Offset

1,2

Comments

Column 6 of A297978.

Links

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

Example

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

Crossrefs

Cf. A297978.

Sequence in context: A269073 A086949 A177504 * A208048 A298839 A301399

Adjacent sequences: A297973 A297974 A297975 * A297977 A297978 A297979

Keyword

nonn

Author

R. H. Hardin, Jan 10 2018

Status

approved