Triangular numbers of the form p^k - 1, where p is a prime number and k >= 2.
A225115
Triangular numbers of the form p^k - 1, where p is a prime number and k >= 2.
Terms
- a(0) =3a(1) =15a(2) =120a(3) =528a(4) =4095a(5) =139128a(6) =160554240a(7) =812293020528
External references
- oeis: A225115