Canyon primes (A134971) whose first and last digits are 9.

Terms

a(0) =919a(1) =929a(2) =9029a(3) =9049a(4) =9059a(5) =9109a(6) =9209a(7) =9239a(8) =9319a(9) =9349a(10) =9419a(11) =9439a(12) =9479a(13) =9539a(14) =9619a(15) =9629a(16) =9649a(17) =9679a(18) =9689a(19) =9719a(20) =9739a(21) =9749a(22) =9769a(23) =9829a(24) =9839a(25) =9859a(26) =90149a(27) =90239a(28) =90289a(29) =90359