Indices of prime numbers in A014260.

Terms

a(0) =3a(1) =4a(2) =5a(3) =7a(4) =11a(5) =13a(6) =19a(7) =22a(8) =25a(9) =30a(10) =39a(11) =71a(12) =81a(13) =98a(14) =1041a(15) =2942a(16) =4377a(17) =10410a(18) =25810a(19) =27722a(20) =64290a(21) =65689a(22) =90525a(23) =110234