Primes p with pi(p), pi(pi(p)) and pi(p^2) all prime, where pi(.) is given by A000720.

Terms

a(0) =59a(1) =127a(2) =709a(3) =1153a(4) =1787a(5) =9319a(6) =13709a(7) =19577a(8) =32797a(9) =35023a(10) =39239a(11) =40819a(12) =53353a(13) =62921a(14) =75269a(15) =90023a(16) =161159a(17) =191551a(18) =218233a(19) =228451a(20) =235891a(21) =238339a(22) =239087a(23) =272999a(24) =289213a(25) =291619a(26) =339601a(27) =439357a(28) =500741a(29) =513683