A222498 Number of nX6 0..3 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order

8, 122, 1758, 43771, 1466810, 71467150, 4383248774, 279117296608, 19384694924376, 1301485540374518, 91540927588228818, 6220763999378553924, 436363353981480122270, 29824936437413440528530, 2084629741778760307931706

Offset

1,1

Comments

Column 6 of A222500

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

Some solutions for n=4
..0..1..0..0..0..0....0..0..1..0..2..3....0..1..2..2..2..2....0..1..2..2..2..2
..2..1..0..0..0..0....3..0..0..0..0..3....2..2..2..2..2..2....1..2..2..2..2..2
..3..3..0..0..0..0....0..0..0..0..0..0....0..1..2..2..2..2....1..0..2..2..2..2
..0..2..0..0..0..0....0..0..0..0..0..0....3..3..2..2..2..2....1..1..2..2..2..2

Crossrefs

Sequence in context: A197305 A196972 A197559 * A361308 A359355 A349525

Adjacent sequences: A222495 A222496 A222497 * A222499 A222500 A222501

Keyword

nonn

Author

R. H. Hardin Feb 23 2013

Status

approved