Indices of primes occurring in A030284.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =9a(6) =13a(7) =16a(8) =18a(9) =21a(10) =24a(11) =26a(12) =48a(13) =79a(14) =99a(15) =110a(16) =129a(17) =140a(18) =187a(19) =304a(20) =566a(21) =670a(22) =798a(23) =905a(24) =1020a(25) =1119a(26) =1346a(27) =2266a(28) =3354a(29) =5140