Triangle read by rows: T(n,k) is the number of n-bead necklace structures with beads of exactly k colors and no adjacent beads having the same color.
A327396
Triangle read by rows: T(n,k) is the number of n-bead necklace structures with beads of exactly k colors and no adjacent beads having the same color.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =0a(4) =0a(5) =1a(6) =0a(7) =1a(8) =1a(9) =1a(10) =0a(11) =0a(12) =1a(13) =1a(14) =1a(15) =0a(16) =1a(17) =3a(18) =5a(19) =2a(20) =1a(21) =0a(22) =0a(23) =3a(24) =10a(25) =8a(26) =2a(27) =1a(28) =0a(29) =1
External references
- oeis: A327396