Numbers whose iterated sum of digits is a prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =12a(6) =14a(7) =16a(8) =20a(9) =21a(10) =23a(11) =25a(12) =29a(13) =30a(14) =32a(15) =34a(16) =38a(17) =39a(18) =41a(19) =43a(20) =47a(21) =48a(22) =50a(23) =52a(24) =56a(25) =57a(26) =59a(27) =61a(28) =65a(29) =66