A205243 Number of (n+1)X6 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.

111041, 2873148, 97718448, 2954664074, 96890744524, 3053080325738, 98979850888752, 3147626098090446, 101661714691938195, 3244508348779174674, 104561582249103669993, 3343583637884068117018, 107597913060577040448668

Offset

1,1

Comments

Column 5 of A205246

Links

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

Example

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

Crossrefs

Sequence in context: A175535 A103874 A195223 * A223110 A094325 A171725

Adjacent sequences: A205240 A205241 A205242 * A205244 A205245 A205246

Keyword

nonn

Author

R. H. Hardin, Jan 24 2012

Status

approved