Number of nonequivalent dissections of a polygon into n pentagons by nonintersecting diagonals up to rotation.

A005038

Number of nonequivalent dissections of a polygon into n pentagons by nonintersecting diagonals up to rotation.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =12a(4) =57a(5) =366a(6) =2340a(7) =16252a(8) =115940a(9) =854981a(10) =6444826a(11) =49554420a(12) =387203390a(13) =3068067060a(14) =24604111560a(15) =199398960212

External references