1,1

Table of n, a(n) for n=1..69.

a(n) = A008472(A113935(n)). - Michel Marcus, May 05 2021

Total[First/@FactorInteger[#]]&/@(Prime@Range@100+3) (* Giorgos Kalogeropoulos, May 05 2021 *)

(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

Cf. A008472, A113935.

Sequence in context: A019602 A153839 A322159 * A021648 A287746 A128006

Adjacent sequences: A023577 A023578 A023579 * A023581 A023582 A023583

nonn

Clark Kimberling

approved