login
A076570
Greatest prime divisor of sum of first n primes.
1
2, 5, 5, 17, 7, 41, 29, 11, 5, 43, 5, 197, 17, 281, 41, 127, 11, 167, 71, 71, 89, 113, 23, 107, 53, 43, 79, 457, 37, 59, 43, 617, 71, 709, 569, 809, 19, 67, 47, 7, 71, 383, 107, 1277, 53, 1409, 317, 79, 47, 43, 107, 23, 53, 2027, 3169, 41, 229, 193, 3709, 7699
OFFSET
1,1
LINKS
FORMULA
a(n) = A006530(A007504(n)). - Amiram Eldar, Jan 07 2020
MATHEMATICA
gpf[n_] := FactorInteger[n][[-1, 1]]; gpf /@ Accumulate[Select[Range[281], PrimeQ]] (* Amiram Eldar, Jan 07 2020 *)
CROSSREFS
Sequence in context: A184604 A064630 A089793 * A089121 A014442 A281793
KEYWORD
easy,nonn
AUTHOR
Zak Seidov, Oct 19 2002
STATUS
approved