A206360 Number of (n+1)X(n+1) 0..3 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..3 introduced in row major order

15, 6329, 47155911, 4089691428777, 4089300179444311432

Offset

1,1

Comments

Diagonal of A206366

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A199099 A251820 A296177 * A292972 A204677 A198250

Adjacent sequences: A206357 A206358 A206359 * A206361 A206362 A206363

Keyword

nonn

Author

R. H. Hardin Feb 06 2012

Status

approved