Number of primitive (aperiodic, or Lyndon) asymmetric rhythm cycles: ones having no nontrivial shift automorphism.

A006575

Number of primitive (aperiodic, or Lyndon) asymmetric rhythm cycles: ones having no nontrivial shift automorphism.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =24a(5) =60a(6) =156a(7) =410a(8) =1092a(9) =2952a(10) =8052a(11) =22140a(12) =61320a(13) =170820a(14) =478288a(15) =1345210a(16) =3798240a(17) =10761660a(18) =30585828a(19) =87169608a(20) =249055976a(21) =713205900a(22) =2046590844a(23) =5883948540a(24) =16945772184a(25) =48882035160a(26) =141214767876a(27) =408514150980

External references