Primes whose consecutive digits differ by 1 or 2.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =13a(5) =23a(6) =31a(7) =43a(8) =53a(9) =67a(10) =79a(11) =89a(12) =97a(13) =101a(14) =131a(15) =313a(16) =353a(17) =421a(18) =431a(19) =457a(20) =467a(21) =643a(22) =653a(23) =757a(24) =787a(25) =797a(26) =1013a(27) =1021a(28) =1201a(29) =1213