OFFSET
1,2
REFERENCES
Tenenbaum, G. (2015). Introduction to analytic and probabilistic number theory, 3rd ed., American Mathematical Soc. See page 59.
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..10000
MATHEMATICA
Accumulate[3^PrimeOmega[Range[100]]] (* Vaclav Kotesovec, Feb 16 2022 *)
PROG
(Python)
from sympy.ntheory.factor_ import primeomega
def A350961(n): return sum(3**primeomega(m) for m in range(1, n+1)) # Chai Wah Wu, Sep 07 2023
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Feb 06 2022
STATUS
approved