Primes of the form 30*p + 1 where p is also prime.

Terms

a(0) =61a(1) =151a(2) =211a(3) =331a(4) =571a(5) =691a(6) =1231a(7) =1291a(8) =1831a(9) =2011a(10) =2131a(11) =2371a(12) =2671a(13) =3271a(14) =3391a(15) =3931a(16) =4111a(17) =5011a(18) =5431a(19) =5791a(20) =6691a(21) =6871a(22) =6991a(23) =8311a(24) =8431a(25) =9391a(26) =9511a(27) =9931a(28) =10111a(29) =10771