Number of primitive (aperiodic, or Lyndon) necklaces with n beads of unlabeled colors such that the numbers of beads per color are distinct.
A261599
Number of primitive (aperiodic, or Lyndon) necklaces with n beads of unlabeled colors such that the numbers of beads per color are distinct.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =3a(6) =13a(7) =24a(8) =67a(9) =252a(10) =1795a(11) =4038a(12) =16812a(13) =61750a(14) =349806a(15) =3485026a(16) =10391070a(17) =49433135a(18) =240064988a(19) =1282012986a(20) =9167581934a(21) =131550811985a(22) =459677212302
External references
- oeis: A261599