A206185 Number of (n+1) X 6 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors.

986388, 30417316, 2674444796, 364197868292, 51975660472496, 7481908870312588, 1078848431799509828, 155633082985105845972, 22454117874107278681104, 3239703783044424175654576, 467432771562040406990065172

Offset

1,1

Comments

Column 5 of A206188.

Links

R. H. Hardin, Table of n, a(n) for n = 1..49

Example

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

Crossrefs

Sequence in context: A250859 A251450 A205656 * A205367 A328288 A328287

Adjacent sequences: A206182 A206183 A206184 * A206186 A206187 A206188

Keyword

nonn

Author

R. H. Hardin, Feb 04 2012

Status

approved