Indices of primes in A001630.

Terms

a(0) =3a(1) =4a(2) =7a(3) =19a(4) =62a(5) =94a(6) =722a(7) =5197a(8) =5262a(9) =6182a(10) =14007a(11) =21579a(12) =35354a(13) =75592