The number of vertices inside a pentagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
A333117
The number of vertices inside a pentagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
Terms
- a(0) =26a(1) =866a(2) =6771a(3) =24221a(4) =64306a(5) =132701a(6) =259761a(7) =453016a(8) =734131a(9) =1134081a(10) =1673056a(11) =2384606a(12) =3326391a(13) =4478286a(14) =5941196a(15) =7710796a(16) =9901136a(17) =12407581a(18) =15497721a(19) =19088991a(20) =23256266a(21) =28021386a(22) =33537586a(23) =39846196a(24) =47092241a(25) =55136771a(26) =64103776a(27) =74213991a(28) =85642556a(29) =98039461
External references
- oeis: A333117