A206753 Number of (n+1)X(n+1) 0..2 arrays with every 2X3 or 3X2 subblock having no more than three equal edges, and new values 0..2 introduced in row major order

14, 2187, 2668146, 22816914744, 1369877126104389, 578960195790179305672

Offset

1,1

Comments

Diagonal of A206761

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A233076 A134814 A258487 * A279577 A015515 A183580

Adjacent sequences: A206750 A206751 A206752 * A206754 A206755 A206756

Keyword

nonn

Author

R. H. Hardin Feb 12 2012

Status

approved