OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
EXAMPLE
The sum of the first three primes = 10 = 2 * 5, the prime factors of which sum to 7. Hence a(3) = 7.
MATHEMATICA
Table[Apply[Plus, Transpose[FactorInteger[Sum[Prime[k], {k, 1, i}]]][[1]]], {i, 1, 100}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Joseph L. Pe, Oct 16 2002
EXTENSIONS
Offset corrected by Amiram Eldar, Mar 09 2020
STATUS
approved