a(n) is the smallest prime p such that tau(p^2 - 1) is equal to 2^n, where tau = A000005.
A380798
a(n) is the smallest prime p such that tau(p^2 - 1) is equal to 2^n, where tau = A000005.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =11a(4) =29a(5) =109a(6) =379a(7) =1429a(8) =4159a(9) =23869a(10) =188189a(11) =2147419a(12) =13470731a(13) =71469971a(14) =573015871a(15) =4272944831a(16) =23731864001
External references
- oeis: A380798