Number of intersections formed within a triangle by placing n points "in general position" on each of the three sides and connecting each point to each of the points on the other two sides using straight lines.
A365929
Number of intersections formed within a triangle by placing n points "in general position" on each of the three sides and connecting each point to each of the points on the other two sides using straight lines.
Terms
- a(0) =0a(1) =0a(2) =15a(3) =108a(4) =396a(5) =1050a(6) =2295a(7) =4410a(8) =7728a(9) =12636a(10) =19575a(11) =29040a(12) =41580a(13) =57798a(14) =78351a(15) =103950a(16) =135360a(17) =173400a(18) =218943a(19) =272916a(20) =336300a(21) =410130a(22) =495495a(23) =593538a(24) =705456a(25) =832500a(26) =975975a(27) =1137240a(28) =1317708a(29) =1518846
External references
- oeis: A365929