a(1)=1, a(2)=2; for n >= 2, a(n+1) = a(n) + sum of prime factors of a(n).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =14a(5) =23a(6) =46a(7) =71a(8) =142a(9) =215a(10) =263a(11) =526a(12) =791a(13) =911a(14) =1822a(15) =2735a(16) =3287a(17) =3479a(18) =3564a(19) =3591a(20) =3626a(21) =3679a(22) =3975a(23) =4041a(24) =4496a(25) =4785a(26) =4833a(27) =5021a(28) =10042a(29) =15065