Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x.

Terms

a(0) =9314a(1) =27849a(2) =30993a(3) =36398a(4) =46142a(5) =46405a(6) =55686a(7) =68653a(8) =69765a(9) =74416a(10) =74924a(11) =83718a(12) =84934a(13) =86662a(14) =86696a(15) =90177a(16) =92915a(17) =97533a(18) =97629a(19) =99895a(20) =101823a(21) =106538a(22) =111498a(23) =116182a(24) =116225a(25) =119005a(26) =119618a(27) =119874a(28) =122506a(29) =124414