login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 08 2014
STATUS
approved