Number of size 2 subsets of S_n that generate a transitive subgroup of S_n.

A266910

Number of size 2 subsets of S_n that generate a transitive subgroup of S_n.

Terms

    a(0) =1a(1) =12a(2) =210a(3) =5520a(4) =206760a(5) =10473120a(6) =688821840a(7) =57039171840

External references