Number of subgroups of S_n isomorphic to S_3, where S_n is the n-th symmetric group.

A378279

Number of subgroups of S_n isomorphic to S_3, where S_n is the n-th symmetric group.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =4a(4) =20a(5) =160a(6) =910a(7) =5936a(8) =53424a(9) =397440a(10) =3304620a(11) =35023120a(12) =322852816

External references