Number of regions in the planar Farey Ring graph FR(n) defined in A359116, including the regions between the convex hull and the bounding circle.

A359117

Number of regions in the planar Farey Ring graph FR(n) defined in A359116, including the regions between the convex hull and the bounding circle.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =30a(4) =250a(5) =548a(6) =3180a(7) =7468a(8) =20684a(9) =36164a(10) =112406a(11) =163600a(12) =425144a(13) =636208a(14) =1028934a(15) =1581766a(16) =3323182a(17) =4249976a(18) =8216442a(19) =10668790a(20) =15329216

External references