Primes that are both left-truncatable and right-truncatable.
A020994
Primes that are both left-truncatable and right-truncatable.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =23a(5) =37a(6) =53a(7) =73a(8) =313a(9) =317a(10) =373a(11) =797a(12) =3137a(13) =3797a(14) =739397
External references
- oeis: A020994