A107463 a(0)=0, a(n)=1 if n is 1 or is a prime, otherwise sum of prime factors of n with multiplicity.

0, 1, 1, 1, 4, 1, 5, 1, 6, 6, 7, 1, 7, 1, 9, 8, 8, 1, 8, 1, 9, 10, 13, 1, 9, 10, 15, 9, 11, 1, 10, 1, 10, 14, 19, 12, 10, 1, 21, 16, 11, 1, 12, 1, 15, 11, 25, 1, 11, 14, 12, 20, 17, 1, 11, 16, 13, 22, 31, 1, 12, 1, 33, 13, 12, 18, 16, 1, 21, 26, 14, 1, 12, 1, 39, 13, 23, 18, 18, 1, 13, 12