A244825 Number of length n 0..1 arrays with each partial sum starting from the beginning no more than two standard deviations from its mean

2, 4, 8, 16, 30, 60, 120, 230, 460, 920, 1790, 3580, 7160, 14060, 28120, 56240, 111080, 222160, 436570, 873140, 1746280, 3456450, 6912900, 13632470, 27264940, 54529880, 108170410, 216340820, 427929590, 855859180, 1711718360, 3401531820

Offset

1,1

Comments

Column 1 of A244832

Links

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

Example

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

Crossrefs

Sequence in context: A216212 A164263 A283836 * A220843 A277751 A277678

Adjacent sequences: A244822 A244823 A244824 * A244826 A244827 A244828

Keyword

nonn

Author

R. H. Hardin, Jul 06 2014

Status

approved