Strictly undulating primes (digits alternate and differ by 1).

A059170

Strictly undulating primes (digits alternate and differ 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) =32323a(11) =78787a(12) =1212121a(13) =323232323a(14) =989898989a(15) =12121212121a(16) =32323232323

External references