Number of bracelets (turnover necklaces) with n beads of 5 colors.
A032276
Number of bracelets (turnover necklaces) with n beads of 5 colors.
Terms
- a(0) =5a(1) =15a(2) =35a(3) =120a(4) =377a(5) =1505a(6) =5895a(7) =25395a(8) =110085a(9) =493131a(10) =2227275a(11) =10196680a(12) =46989185a(13) =218102685a(14) =1017448143a(15) =4768969770a(16) =22440372245a(17) =105966797755a(18) =501938733555
External references
- oeis: A032276