1,3

Amiram Eldar, Table of n, a(n) for n = 1..10000

a(n) = A001222(A007504(n)). - Amiram Eldar, Mar 09 2020

a(3) = 2 because 2+3+5 = 10 = 2*5.

a(5) = 3 because 2+3+5+7+11 = 28 = 2*2*7.

PrimeOmega @ Accumulate @ Select[Range[230], PrimeQ] (* Amiram Eldar, Mar 09 2020 *)

(PARI) for(n=1, 105, print1(bigomega(sum(k=1, n, prime(k))), ", ")) \\ Rick L. Shepherd, May 17 2005

Cf. A001222, A007504.

Sequence in context: A339443 A342655 A161901 * A029331 A037269 A124579

Adjacent sequences: A102859 A102860 A102861 * A102863 A102864 A102865

nonn

Giovanni Teofilatto, Mar 01 2005

More terms from Rick L. Shepherd, May 17 2005

approved