A205242 Number of (n+1)X5 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in each of its horizontal and vertical neighbors

18148, 323806, 7051340, 144087952, 2954664074, 60907844595, 1253758820754, 25826772963664, 531753841353962, 10966785381217104, 225806941294781192, 4658026215140463264, 95926375405868551142, 1978420742738282021648

Offset

1,1

Comments

Column 4 of A205246

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A224571 A251832 A250639 * A172936 A025029 A230948

Adjacent sequences: A205239 A205240 A205241 * A205243 A205244 A205245

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved