Number of bracelets describing topological configurations of points and lines formed by the perpendicular bisectors of the sides of a convex cyclic n-gon.

A350280

Number of bracelets describing topological configurations of points and lines formed by the perpendicular bisectors of the sides of a convex cyclic n-gon.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =5a(4) =9a(5) =30a(6) =69a(7) =203a(8) =519a(9) =1466a(10) =3933a(11) =11025a(12) =30345a(13) =85190a(14) =238063a(15) =671651a(16) =1895265a(17) =5376856a(18) =15279117a(19) =43568435a(20) =124478129a(21) =356537150a(22) =1023113061a(23) =2941713513a(24) =8472215013a(25) =24439992746a(26) =70604898953a(27) =204253079165a(28) =591631927785

External references