Primes of the form 18*p+1, where p is also a prime.

Terms

a(0) =37a(1) =127a(2) =199a(3) =307a(4) =523a(5) =739a(6) =1063a(7) =1279a(8) =1423a(9) =1747a(10) =2287a(11) =2467a(12) =2503a(13) =2683a(14) =2719a(15) =3259a(16) =3547a(17) =3583a(18) =4339a(19) =4519a(20) =4987a(21) =5059a(22) =5527a(23) =6067a(24) =6247a(25) =6607a(26) =6823a(27) =7219a(28) =7759a(29) =8623