A244934 Number of length n 0..2 arrays with each partial sum starting from the beginning no more than sqrt(3) standard deviations from its mean.

3, 9, 25, 69, 207, 603, 1741, 5223, 15445, 45423, 133083, 388931, 1166793, 3468159, 10273893, 30362903, 89585413, 268756239, 801503303, 2384949771, 7085216455, 21024282907, 62328987385, 184644664807, 553933994421, 1654527949377

Offset

1,1

Comments

Column 2 of A244940

Links

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

Example

Some solutions for n=10
..1....2....1....2....0....1....2....2....1....2....0....1....2....2....1....0
..2....2....0....0....0....0....2....0....1....1....0....2....0....0....1....1
..1....0....2....0....2....0....0....1....2....1....2....1....2....2....0....1
..1....2....1....2....0....2....2....0....0....0....2....2....1....1....0....2
..2....0....1....2....0....1....1....1....2....0....1....1....1....0....2....2
..2....0....0....0....1....0....1....1....1....2....1....2....0....0....2....1
..1....1....0....0....1....2....2....0....1....0....0....1....1....1....1....2
..1....2....0....0....0....2....1....2....0....1....0....2....0....1....2....0
..1....1....2....1....1....2....0....1....2....2....0....0....1....0....2....2
..1....1....2....2....1....1....0....2....0....2....0....1....0....2....1....0

Crossrefs

Sequence in context: A211297 A370227 A297590 * A291594 A007046 A211286

Adjacent sequences: A244931 A244932 A244933 * A244935 A244936 A244937

Keyword

nonn

Author

R. H. Hardin, Jul 08 2014

Status

approved