Triangle read by rows: T(n,k) is the number of polygons with 2*n sides, of which k run through the center of a circle, on the circumference of which the 2*n vertices of the polygon are arranged at equal spacing, up to rotation.
A358328
Triangle read by rows: T(n,k) is the number of polygons with 2*n sides, of which k run through the center of a circle, on the circumference of which the 2*n vertices of the polygon are arranged at equal spacing, up to rotation.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =4a(7) =4a(8) =4a(9) =2a(10) =98a(11) =120a(12) =84a(13) =24a(14) =6a(15) =5648a(16) =6912a(17) =4032a(18) =1344a(19) =288a(20) =40a(21) =532344a(22) =631680a(23) =351360a(24) =118408a(25) =26400a(26) =3840a(27) =322a(28) =72724122a(29) =84211200
External references
- oeis: A358328