A206365 Number of (n+1)X6 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.

383021, 643832706, 1197873588223, 2216692870846655, 4089300179444311432

Offset

1,1

Comments

Column 5 of A206366

Links

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

Example

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

Crossrefs

Sequence in context: A286009 A295454 A273772 * A271323 A205759 A205589

Adjacent sequences: A206362 A206363 A206364 * A206366 A206367 A206368

Keyword

nonn

Author

R. H. Hardin, Feb 06 2012

Status

approved