Primes whose base-9 representation also is the base-3 representation of a prime.

Terms

a(0) =2a(1) =11a(2) =19a(3) =83a(4) =101a(5) =163a(6) =173a(7) =739a(8) =811a(9) =821a(10) =829a(11) =911a(12) =1549a(13) =1559a(14) =1621a(15) =6563a(16) =6581a(17) =6661a(18) =6733a(19) =8111a(20) =8191a(21) =13933a(22) =14753a(23) =59069a(24) =59141a(25) =59779a(26) =59797a(27) =59951a(28) =60589a(29) =60607