OFFSET
1,1
COMMENTS
The final member of the sequence is a(456) = 13.
EXAMPLE
(13+2297)=2310=2*3*5*7*11, etc.
CROSSREFS
KEYWORD
nonn,fini,easy,less
AUTHOR
Juri-Stepan Gerasimov, Aug 05 2008
EXTENSIONS
Comment from Charles R Greathouse IV, Mar 26 2010
STATUS
approved