Triangle read by rows: T(n,k) is the number of n-bead necklace structures which are not self-equivalent under a nonzero rotation using exactly k different colored beads.
A327693
Triangle read by rows: T(n,k) is the number of n-bead necklace structures which are not self-equivalent under a nonzero rotation using exactly k different colored beads.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =1a(8) =1a(9) =0a(10) =0a(11) =3a(12) =5a(13) =2a(14) =0a(15) =0a(16) =4a(17) =13a(18) =9a(19) =2a(20) =0a(21) =0a(22) =9a(23) =43a(24) =50a(25) =20a(26) =3a(27) =0a(28) =0a(29) =14
External references
- oeis: A327693