The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

A160650

a(n) = A001222(A160649(n)) = A160649(n+1) - A160649(n); where A001222(m) is the sum of prime-factorization exponents of m (or, A001222(m) is the number of primes dividing m, counted with multiplicity).