Number of words of length 2n in the 6 transpositions of S[ 4 ] equivalent to the identity.

A029697

Number of words of length 2n in the 6 transpositions of S[ 4 ] equivalent to the identity.

Terms

    a(0) =6a(1) =120a(2) =3936a(3) =140160a(4) =5039616a(5) =181401600a(6) =6530359296a(7) =235092541440

External references