Number of bracelet structures using a maximum of five different colored beads.
A056355
Number of bracelet structures using a maximum of five different colored beads.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =12a(6) =36a(7) =89a(8) =322a(9) =1137a(10) =4704a(11) =19839a(12) =88508a(13) =399680a(14) =1839947a(15) =8533488a(16) =39893901a(17) =187393550a(18) =884153396a(19) =4185740195a(20) =19876594537a(21) =94633345608a(22) =451615319433
External references
- oeis: A056355