OFFSET
1,2
COMMENTS
See Nussbaum and Verduyn Lunel (2003) for precise definition.
LINKS
Nussbaum, Roger D.; Verduyn Lunel, Sjoerd M., Asymptotic estimates for the periods of periodic points of non-expansive maps, Ergodic Theory Dynam. Systems 23 (2003), no. 4, 1199--1226. See Table 1 and the function n*d_n. MR1997973 (2004m:37033)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 28 2013
STATUS
approved