  We compute the third order moments of a complex Wigner matrix. We provide a
formula for the third order moments $\alpha_{m_1,m_2,m_3}$ in terms of quotient
graphs $T_{m_1,m_2,m_3}^{\pi}$ where $\pi$ is the Kreweras complement of a
non-crossing pairing on the annulus. We prove that these graphs can be counted
using the set of partitioned permutations, this permits us to write the third
order moments in terms of the high order free cumulants which have a simple
expression.
