1,1

No other terms below 10^6.

Zaremba conjectured that A141823, A141832, A141833, and this sequence form a partition of the integers >1.

Is this sequence finite? If so, is it complete?

Table of n, a(n) for n=1..3.

A. Kontorovich, From Apollonius to Zaremba: local-global phenomena in thin orbits, 2012. - From N. J. A. Sloane, Dec 25 2012

Sequence in context: A248369 A097645 A153333 * A260955 A072368 A116138

Adjacent sequences: A195898 A195899 A195900 * A195902 A195903 A195904

nonn,bref,more,hard

Max Alekseyev, Sep 25 2011

approved