Primes which are the reverse concatenation of two consecutive odd numbers.

Terms

a(0) =31a(1) =53a(2) =97a(3) =2927a(4) =3331a(5) =3533a(6) =4139a(7) =5351a(8) =6361a(9) =6563a(10) =6967a(11) =7573a(12) =8179a(13) =9391a(14) =111109a(15) =113111a(16) =123121a(17) =129127a(18) =131129a(19) =143141a(20) =153151a(21) =155153a(22) =159157a(23) =161159a(24) =171169a(25) =185183a(26) =189187a(27) =191189a(28) =195193a(29) =219217