Number of n-bead necklace structures using an infinite alphabet that are not self-equivalent under a nonzero rotation.

A327696

Number of n-bead necklace structures using an infinite alphabet that are not self-equivalent under a nonzero rotation.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =2a(5) =10a(6) =28a(7) =125a(8) =497a(9) =2345a(10) =11497a(11) =61688a(12) =350543a(13) =2126495a(14) =13631966a(15) =92197099a(16) =654982126a(17) =4874404106a(18) =37892942311a(19) =306986431845

External references