Primes whose consecutive digits differ by 6 or 7.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =17a(5) =29a(6) =71a(7) =181a(8) =281a(9) =293a(10) =607a(11) =829a(12) =929a(13) =2939a(14) =3929a(15) =8171a(16) =8293a(17) =9281a(18) =9293a(19) =18181a(20) =28181a(21) =39293a(22) =60607a(23) =70607a(24) =70717a(25) =71707a(26) =81707a(27) =81817a(28) =82939a(29) =170707