Number of nonequivalent dissections of a polygon into n quadrilaterals by nonintersecting diagonals rooted at a cell up to rotation and reflection.
A005035
Number of nonequivalent dissections of a polygon into n quadrilaterals by nonintersecting diagonals rooted at a cell up to rotation and reflection.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =13a(4) =64a(5) =315a(6) =1727a(7) =9658a(8) =55657a(9) =325390a(10) =1929160a(11) =11555172a(12) =69840032a(13) =425318971a(14) =2607388905a(15) =16077392564a(16) =99646239355a(17) =620439153165
External references
- oeis: A005035