OFFSET
1,1
FORMULA
MATHEMATICA
Total[First/@FactorInteger[#]]&/@(Prime@Range@100+3) (* Giorgos Kalogeropoulos, May 05 2021 *)
PROG
(Python)
from sympy import primefactors, prime
def a(n): return sum(primefactors(prime(n) + 3))
print([a(n) for n in range(1, 70)]) # Michael S. Branicky, May 05 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved