A244781 Number of length n 0..1 arrays with each partial sum starting from the beginning no more than one standard deviation from its mean.

2, 2, 4, 8, 12, 24, 36, 72, 144, 252, 504, 864, 1728, 2952, 5904, 11808, 21888, 43776, 79920, 159840, 290160, 580320, 1051200, 2102400, 4204800, 8010000, 16020000, 30189600, 60379200, 113252400, 226504800, 423828000, 847656000, 1584075600

Offset

1,1

Comments

Column 1 of A244788

Links

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

Example

Some solutions for n=10
..1....0....1....1....1....1....0....1....1....0....1....0....1....0....1....0
..0....1....0....0....0....0....1....0....0....1....0....1....0....1....0....1
..1....0....0....0....0....1....0....1....0....1....0....1....0....1....0....0
..0....1....1....1....1....0....1....1....1....0....1....1....1....0....1....1
..0....0....0....0....1....0....0....0....1....1....1....0....0....0....1....0
..1....1....1....1....1....1....0....1....0....1....0....1....0....1....0....1
..0....0....0....1....0....1....1....0....0....0....1....0....1....1....0....0
..1....0....0....0....0....0....1....1....1....1....0....0....0....1....1....1
..0....1....1....1....0....1....0....1....1....0....1....0....1....0....0....1
..0....1....0....1....0....0....0....0....0....0....0....0....1....1....0....0

Crossrefs

Sequence in context: A348851 A329664 A153993 * A052907 A048114 A268691

Adjacent sequences: A244778 A244779 A244780 * A244782 A244783 A244784

Keyword

nonn

Author

R. H. Hardin, Jul 06 2014

Status

approved