Number of permutations up to cyclic rotations; permutation siteswap necklaces.
A061417
Number of permutations up to cyclic rotations; permutation siteswap necklaces.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =28a(5) =136a(6) =726a(7) =5100a(8) =40362a(9) =363288a(10) =3628810a(11) =39921044a(12) =479001612a(13) =6227066928a(14) =87178295296
External references
- oeis: A061417