73180800

Appears in sequences

• Number of permutations of an n-set containing a 6-cycle.at n=12A029573
• a(n) = (2n-1)*(2n-1)!/n.at n=5A052145
• Number of n-permutations such that at least one cycle has size ceiling(n/2).at n=11A229244
• n*n!/round(n/2).at n=10A256880