A222664 Number of nX6 0..3 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order

8, 103, 2686, 62406, 2169240, 85836756, 4437593254, 258544501925, 16020345244330, 1025854594717790, 66890197022992724, 4395700169818174037, 289565680501179990654, 19097764345956813578074, 1260427355737644652915392

Offset

1,1

Comments

Column 6 of A222666

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A369184 A297069 A090237 * A190786 A138430 A366653

Adjacent sequences: A222661 A222662 A222663 * A222665 A222666 A222667

Keyword

nonn

Author

R. H. Hardin Feb 28 2013

Status

approved