OFFSET
1,2
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..1000
EXAMPLE
a(5) = Sum_{k=1..5} 5^Omega(k) = 5^0 + 5^1 + 5^1 + 5^2 + 5^1 = 41.
MATHEMATICA
Table[Sum[n^PrimeOmega[k], {k, n}], {n, 40}]
PROG
(PARI) a(n) = sum(k=1, n, n^bigomega(k)); \\ Michel Marcus, Sep 09 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Wesley Ivan Hurt, Sep 08 2021
STATUS
approved