OFFSET
1,1
COMMENTS
LINKS
A. Kontorovich, From Apollonius to Zaremba: Local-global phenomena in thin orbits, Bull. Amer. Math. Soc., 50 (2013), 187-228. - From N. J. A. Sloane, Dec 25 2012
CROSSREFS
KEYWORD
nonn,bref,more,hard
AUTHOR
Max Alekseyev, Sep 25 2011
STATUS
approved