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A112846 Number of riffs on n or fewer nodes. Number of rotes on 2n+1 or fewer nodes. 6
1, 2, 4, 10, 30, 103, 384, 1508, 6126, 25513, 108278, 466523, 2034981, 8968746, 39875940, 138760603, 178636543, 3026583484, 16028356176, 75647274620, 350111055991, 1618175863400, 7495933933620, 34821723061950 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Partial sums of A061396.

LINKS

Table of n, a(n) for n=0..23.

J. Awbrey, Riffs and Rotes

CROSSREFS

Cf. A000079, A001221, A007097, A014221, A050924.

Cf. A061396, A062504, A062537, A062860, A106177.

Cf. A109300, A109301, A111791 to A111800.

Cf. A112095, A112096, A112480, A112481.

Sequence in context: A094957 A000733 A092073 * A050397 A186021 A091174

Adjacent sequences:  A112843 A112844 A112845 * A112847 A112848 A112849

KEYWORD

nonn

AUTHOR

Jon Awbrey, Oct 04 2005, based on calculations by Vladeta Jovovic and David W. Wilson

STATUS

approved

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Last modified April 16 06:19 EDT 2014. Contains 240545 sequences.