Number of distinct necklaces with n red, n green, n blue and n white beads.

A207816

Number of distinct necklaces with n red, n green, n blue and n white beads.

Terms

    a(0) =1a(1) =6a(2) =318a(3) =30804a(4) =3941598a(5) =586637256a(6) =96197661156

External references