Number of n-bead necklace structures using a maximum of six different colored beads.

A056294

Number of n-bead necklace structures using a maximum of six different colored beads.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =7a(4) =12a(5) =43a(6) =126a(7) =539a(8) =2304a(9) =11023a(10) =54682a(11) =284071a(12) =1509852a(13) =8195029a(14) =45080666a(15) =250641895a(16) =1404374248a(17) =7917211349a(18) =44848645458a(19) =255055231763

External references