A245849 Number of length n 0..6 arrays with new values introduced in order from both ends, and least squares fitting to a straight line with slope zero, with a single point taken as having zero slope

1, 1, 2, 2, 5, 5, 15, 17, 78, 102, 569, 919, 6143, 11171, 86081, 175169, 1500038, 3364000, 31525459, 76939147, 780320735, 2050031495, 22262632431, 62282672077, 716105605234, 2108542401240, 25363729963607, 77679827847931

Offset

1,3

Comments

Column 6 of A245851

Links

R. H. Hardin, Table of n, a(n) for n = 1..64

Example

Some solutions for n=12
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....1....1....1....0....1....1....1....1....1....1....1....0....1
..2....0....1....0....0....1....1....2....0....2....1....2....2....1....1....0
..2....2....1....1....2....0....2....1....0....3....1....1....1....0....1....2
..3....3....2....1....2....2....3....3....0....2....0....1....0....2....1....0
..1....2....2....1....2....0....1....2....0....1....0....3....2....0....0....1
..2....4....0....0....2....1....1....2....2....1....1....2....1....0....2....2
..1....3....2....2....2....0....1....3....0....2....2....2....2....1....2....2
..3....2....0....1....2....1....0....1....0....3....1....2....0....2....0....1
..2....1....2....1....0....1....2....2....1....2....0....1....2....0....1....1
..1....0....1....0....1....1....1....1....0....1....1....1....1....1....0....0
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

Crossrefs

Sequence in context: A245846 A245847 A245848 * A245850 A245844 A083849

Adjacent sequences: A245846 A245847 A245848 * A245850 A245851 A245852

Keyword

nonn

Author

R. H. Hardin, Aug 04 2014

Status

approved