Numbers n such that sum of digits and product of digits are both prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =12a(5) =21a(6) =113a(7) =115a(8) =131a(9) =151a(10) =311a(11) =511a(12) =1112a(13) =1121a(14) =1211a(15) =2111a(16) =11113a(17) =11117a(18) =11131a(19) =11171a(20) =11311a(21) =11711a(22) =13111a(23) =17111a(24) =31111a(25) =71111a(26) =111112a(27) =111121a(28) =111211a(29) =112111