Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions equal the Farey series of order n.

A359971

Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions equal the Farey series of order n.

Terms

    a(0) =1a(1) =5a(2) =33a(3) =15a(4) =108a(5) =126a(6) =5a(7) =727a(8) =1031a(9) =38a(10) =2a(11) =1314a(12) =2452a(13) =167a(14) =15a(15) =2a(16) =6811a(17) =12102a(18) =988a(19) =52a(20) =14904a(21) =27626a(22) =3255a(23) =214a(24) =4a(25) =2a(26) =2a(27) =39172a(28) =73289a(29) =10062

External references