Number of polygons formed by infinite lines when connecting all vertices and all points that divide the sides of an equilateral triangle into n equal parts.

A344279

Number of polygons formed by infinite lines when connecting all vertices and all points that divide the sides of an equilateral triangle into n equal parts.

Terms

    a(0) =1a(1) =12a(2) =102a(3) =396a(4) =1198a(5) =2748a(6) =5539a(7) =10272a(8) =16986a(9) =26934a(10) =41179a(11) =60804a(12) =84769a(13) =119022a(14) =157947a(15) =206352a(16) =268030a(17) =347430a(18) =432820a(19) =543210a(20) =659238a(21) =801804a(22) =970429a(23) =1171662a(24) =1371040a(25) =1627398a(26) =1904550a(27) =2213712a(28) =2555320a(29) =2971260

External references