A205420 Number of (n+1)X5 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

345008, 33701202, 3739413082, 399249906572, 42562692150766, 4558547882869512, 487775723670391966, 52228554237378414032, 5588909320497960872156, 598515489271852583253130, 64051232969143023609799566

Offset

1,1

Comments

Column 4 of A205422

Links

R. H. Hardin, Table of n, a(n) for n = 1..80

Example

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

Crossrefs

Sequence in context: A235664 A235429 A015321 * A230717 A350458 A254172

Adjacent sequences: A205417 A205418 A205419 * A205421 A205422 A205423

Keyword

nonn

Author

R. H. Hardin Jan 27 2012

Status

approved