Definition:Wolstenholme Prime

Definition
A Wolstenholme prime is a prime number $p$ such that $p > 7$ which satisfies the congruence:


 * $\dbinom {2 p - 1} {p - 1} \equiv 1 \pmod {p^4}$

where $\dbinom {2 p - 1} {p - 1}$ denotes a binomial coefficient.