login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A103892
Greatest prime factor of prime(n)! / prime(n)# + 1.
4
2, 2, 5, 5, 1571, 2693, 15427, 27749, 4154449757, 151585363459003, 73899633146196133, 24770877398207, 1429176066859677377, 7748318379505746557, 21662673895172922098651
OFFSET
1,1
LINKS
Reinhard Zumkeller, p(n)!/p(n )#+1
FORMULA
a(n) = A006530(A103890(n)).
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Feb 20 2005
STATUS
approved