A205951 Number of (n+1) X 5 0..3 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.

151824, 3825072, 101702648, 2938041784, 90234357280, 2915195222352, 97376756715048, 3323115063194944, 114956621013901728, 4009974857113714304, 140592681593832370928, 4944437367755630155480, 174211885766255474821936

Offset

1,1

Comments

Column 4 of A205954.

Links

R. H. Hardin, Table of n, a(n) for n = 1..172

Example

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

Crossrefs

Sequence in context: A367841 A251987 A205662 * A205462 A248691 A086691

Adjacent sequences: A205948 A205949 A205950 * A205952 A205953 A205954

Keyword

nonn

Author

R. H. Hardin, Feb 02 2012

Status

approved