A210382 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences

73, 13399, 18515113, 192819707871, 15131054507351557, 8946828669222001072923, 39860904095207157826344048581, 1338142445856203852961023218176264667, 338481168217540639990536405859266581293849121

Offset

1,1

Comments

Diagonal of A210390

Links

R. H. Hardin, Table of n, a(n) for n = 1..12

Example

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

Crossrefs

Sequence in context: A176987 A174747 A364301 * A091757 A070531 A274591

Adjacent sequences: A210379 A210380 A210381 * A210383 A210384 A210385

Keyword

nonn

Author

R. H. Hardin Mar 20 2012

Status

approved