A245848 Number of length n 0..5 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, 6142, 11170, 86043, 174957, 1495234, 3338570, 31029867, 74669371, 740854138, 1885642110, 19616697093, 51936661281, 558093960576, 1517106442790, 16655034027581, 46067262638225

Offset

1,3

Comments

Column 5 of A245851

Links

R. H. Hardin, Table of n, a(n) for n = 1..87

Example

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

Crossrefs

Sequence in context: A188164 A245846 A245847 * A245849 A245850 A245844

Adjacent sequences: A245845 A245846 A245847 * A245849 A245850 A245851

Keyword

nonn

Author

R. H. Hardin, Aug 04 2014

Status

approved