A205421 Number of (n+1)X6 0..3 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors

3855292, 782598960, 189526149374, 42562692150766, 9958775794360374

Offset

1,1

Comments

Column 5 of A205422

Links

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

Example

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

Crossrefs

Sequence in context: A344904 A344921 A204812 * A183592 A069375 A247088

Adjacent sequences: A205418 A205419 A205420 * A205422 A205423 A205424

Keyword

nonn

Author

R. H. Hardin Jan 27 2012

Status

approved