Odd-indexed primes: a(n) = prime(2n-1).

Terms

a(0) =2a(1) =5a(2) =11a(3) =17a(4) =23a(5) =31a(6) =41a(7) =47a(8) =59a(9) =67a(10) =73a(11) =83a(12) =97a(13) =103a(14) =109a(15) =127a(16) =137a(17) =149a(18) =157a(19) =167a(20) =179a(21) =191a(22) =197a(23) =211a(24) =227a(25) =233a(26) =241a(27) =257a(28) =269a(29) =277