OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
EXAMPLE
a(6)=15 since sopfr(A129316(6))=sopfr(160)=sopfr(2^5*5)=15.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Walter Kehowski, Apr 09 2007, corrected Apr 09 2007
STATUS
approved