OFFSET
1,2
COMMENTS
a(8) (if it exists) > 10^8. - Hiroaki Yamanouchi, Sep 11 2014
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Naohiro Nomoto, Aug 05 2012
EXTENSIONS
a(6)-a(7) from Max Alekseyev, Aug 18 2013
STATUS
approved