OFFSET
1,1
COMMENTS
Terms up to a(111) are known from the b-file for A102926. Term a(112) requires us to find the smallest prime factor of at least one of the C472's a(111)+/-1. The companion sequence is listed on the OEIS wiki page "OEIS sequences needing factors" and the corresponding thread on mersenneforum.org. - M. F. Hasler, Mar 21 2013
FORMULA
Product A102926(k), 1<=k<=n.
EXAMPLE
a(4) = 2*3*5*29 = 870.
CROSSREFS
KEYWORD
nonn
AUTHOR
Marc LeBrun, Jan 19 2005
STATUS
approved