Indices of primes with digit product = 3.

Terms

a(0) =2a(1) =6a(2) =11a(3) =30a(4) =32a(5) =64a(6) =1346a(7) =1349a(8) =1367a(9) =10715a(10) =12253a(11) =26886a(12) =733412a(13) =733420a(14) =733533a(15) =734596a(16) =6363182a(17) =6363183a(18) =6363289a(19) =7437658a(20) =503193257a(21) =503193259a(22) =503279746a(23) =504057767a(24) =1346029458a(25) =4555878955a(26) =12238593622