Number of dissections of an n-gon into 3- and 5-gons counted up to rotations and reflections.

A290571

Number of dissections of an n-gon into 3- and 5-gons counted up to rotations and reflections.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =22a(6) =60a(7) =208a(8) =695a(9) =2566a(10) =9451a(11) =36158a(12) =139574a(13) =548347a(14) =2174801a(15) =8719651a(16) =35244472a(17) =143581782a(18) =588858667a(19) =2430036786a(20) =10083626092a(21) =42055927173a(22) =176217259551a(23) =741517642476

External references