Multiplicative primes: product of digits is a prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =13a(5) =17a(6) =31a(7) =71a(8) =113a(9) =131a(10) =151a(11) =211a(12) =311a(13) =1117a(14) =1151a(15) =1171a(16) =1511a(17) =2111a(18) =11113a(19) =11117a(20) =11131a(21) =11171a(22) =11311a(23) =111121a(24) =111211a(25) =112111a(26) =113111a(27) =131111a(28) =311111a(29) =511111