Primes p such that A001221(p+1)^(p-1) == 1 (mod p^2).
A267487
Primes p such that A001221(p+1)^(p-1) == 1 (mod p^2).
Terms
- a(0) =2a(1) =3a(2) =7a(3) =31a(4) =127a(5) =1093a(6) =3511a(7) =8191a(8) =131071a(9) =524287a(10) =1645333507a(11) =2147483647
External references
- oeis: A267487