Number of necklaces with n white beads and n^2-n black beads.

A261496

Number of necklaces with n white beads and n^2-n black beads.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =10a(4) =116a(5) =2126a(6) =54132a(7) =1753074a(8) =69159400a(9) =3220837534a(10) =173103115760

External references