Primes with consecutive digits that differ exactly by 1.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =23a(5) =43a(6) =67a(7) =89a(8) =101a(9) =787a(10) =4567a(11) =12101a(12) =12323a(13) =12343a(14) =32321a(15) =32323a(16) =34543a(17) =54323a(18) =56543a(19) =56767a(20) =76543a(21) =78787a(22) =78989a(23) =210101a(24) =212123a(25) =234323a(26) =234343a(27) =432121a(28) =432323a(29) =432343