OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
EXAMPLE
a(6)=30 since sopfr(A129317(6))=sopfr(161)=sopfr(7*23)=30.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Walter Kehowski, Apr 09 2007
STATUS
approved