Primes sorted on digit sums, then on the primes.

Terms

a(0) =2a(1) =11a(2) =101a(3) =3a(4) =13a(5) =31a(6) =103a(7) =211a(8) =1021a(9) =1201a(10) =2011a(11) =3001a(12) =10111a(13) =20011a(14) =20101a(15) =21001a(16) =100003a(17) =102001a(18) =1000003a(19) =1011001a(20) =1020001a(21) =1100101a(22) =2100001a(23) =10010101a(24) =10100011a(25) =20001001a(26) =30000001a(27) =101001001a(28) =200001001a(29) =1000000021