Primes p such that p^2 divides p.p.p where dot "." means concatenation.
A147554
Primes p such that p^2 divides p.p.p where dot "." means concatenation.
Terms
- a(0) =3a(1) =13a(2) =37a(3) =9901a(4) =333667a(5) =99990001a(6) =999999000001
External references
- oeis: A147554