A222789 Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order

0, 4, 34, 582, 3800, 92642, 589134, 15697114, 101205850, 2768968458, 17982090240, 499074464184, 3254525287074, 91174422158328, 596469391588434, 16817976440314170, 110319637897696154, 3125091350637342914

Offset

1,2

Comments

Column 3 of A222794

Links

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

Example

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

Crossrefs

Sequence in context: A134354 A333981 A030243 * A326206 A088077 A358326

Adjacent sequences: A222786 A222787 A222788 * A222790 A222791 A222792

Keyword

nonn

Author

R. H. Hardin Mar 05 2013

Status

approved