Number of triangles inside a regular n-gon formed by intersecting line segments, considering all configurations of 3 line segments from 6 distinct vertices.

A363173

Number of triangles inside a regular n-gon formed by intersecting line segments, considering all configurations of 3 line segments from 6 distinct vertices.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =7a(5) =16a(6) =84a(7) =180a(8) =462a(9) =796a(10) =1716a(11) =2856a(12) =5005a(13) =7744a(14) =12376a(15) =17508a(16) =27132a(17) =38160a(18) =54264a(19) =73788a(20) =100947a(21) =132216a(22) =177100a(23) =228748a(24) =296010a(25) =374808a(26) =475020a(27) =584140a(28) =736281a(29) =903168

External references