Becomes prime after exactly 9 iterations of f(x) = sum of prime factors of x.

Terms

a(0) =41037a(1) =55694a(2) =82083a(3) =86662a(4) =88982a(5) =90177a(6) =106221a(7) =106562a(8) =109838a(9) =111388a(10) =123111a(11) =134098a(12) =168049a(13) =173324a(14) =177697a(15) =177964a(16) =179995a(17) =195458a(18) =207574a(19) =213124a(20) =214779a(21) =215994a(22) =219676a(23) =222776a(24) =229315a(25) =233857a(26) =240070a(27) =240115a(28) =244534a(29) =246249