Primes in which parity of digits alternates.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =23a(5) =29a(6) =41a(7) =43a(8) =47a(9) =61a(10) =67a(11) =83a(12) =89a(13) =101a(14) =103a(15) =107a(16) =109a(17) =127a(18) =149a(19) =163a(20) =167a(21) =181a(22) =307a(23) =347a(24) =349a(25) =367a(26) =383a(27) =389a(28) =503a(29) =509