Primes q = 4*p+1, where p == 2 (mod 5) is also prime.

Terms

a(0) =29a(1) =149a(2) =269a(3) =389a(4) =509a(5) =1109a(6) =1229a(7) =1949a(8) =2309a(9) =2909a(10) =3989a(11) =4349a(12) =5189a(13) =5309a(14) =6269a(15) =6389a(16) =7109a(17) =7949a(18) =8069a(19) =9749a(20) =10589a(21) =10709a(22) =11069a(23) =11549a(24) =12149a(25) =12269a(26) =13229a(27) =13829a(28) =14549a(29) =15629