Primes that are a concatenation of 5, 7 and a prime.

Terms

a(0) =577a(1) =5711a(2) =5717a(3) =5737a(4) =5741a(5) =5743a(6) =5779a(7) =5783a(8) =57107a(9) =57131a(10) =57139a(11) =57149a(12) =57163a(13) =57173a(14) =57179a(15) =57191a(16) =57193a(17) =57223a(18) =57241a(19) =57251a(20) =57269a(21) =57271a(22) =57283a(23) =57331a(24) =57347a(25) =57349a(26) =57367a(27) =57373a(28) =57383a(29) =57389