Prime-indexed primes p such that 2*p + 1 is also a prime-indexed prime.

Terms

a(0) =5a(1) =41a(2) =1031a(3) =3299a(4) =3761a(5) =6323a(6) =7649a(7) =7841a(8) =10589a(9) =12959a(10) =18443a(11) =37853a(12) =38039a(13) =44729a(14) =58511a(15) =59723a(16) =60509a(17) =77813a(18) =105971a(19) =134489a(20) =137999a(21) =190523a(22) =194933a(23) =200351a(24) =239633a(25) =250751a(26) =266093a(27) =288653a(28) =315011a(29) =366161