Number of nonequivalent dissections of an n-gon by nonintersecting diagonals rooted at a cell up to rotation and reflection.

A003456

Number of nonequivalent dissections of an n-gon by nonintersecting diagonals rooted at a cell up to rotation and reflection.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =17a(4) =62a(5) =275a(6) =1272a(7) =6225a(8) =31075a(9) =158376a(10) =816229a(11) =4251412a(12) =22319056a(13) =117998524a(14) =627573216a(15) =3355499036a(16) =18025442261a(17) =97239773408a(18) =526560862829

External references