Number of n-bead necklaces with 7 colors.

Terms

a(0) =1a(1) =7a(2) =28a(3) =119a(4) =616a(5) =3367a(6) =19684a(7) =117655a(8) =720916a(9) =4483815a(10) =28249228a(11) =179756983a(12) =1153450872a(13) =7453000807a(14) =48444564052a(15) =316504102999