Indices of primes occurring in A031133.

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =15a(5) =23a(6) =29a(7) =46a(8) =188a(9) =216a(10) =326a(11) =367a(12) =738a(13) =1183a(14) =1662a(15) =2224a(16) =2225a(17) =3384a(18) =3385a(19) =4058a(20) =5948a(21) =14356a(22) =30802a(23) =31544a(24) =33608a(25) =104070a(26) =118504a(27) =325851a(28) =597310a(29) =1319944