Primes p such that A001221(p-1)^(p-1) == 1 (mod p^2).

A260377

Primes p such that A001221(p-1)^(p-1) == 1 (mod p^2).

Terms

    a(0) =3a(1) =5a(2) =17a(3) =257a(4) =1093a(5) =3511a(6) =65537a(7) =1006003

External references