Expansion of the generating function of quartic rooted planar Eulerian orientations, counted by vertices.

A324314

Expansion of the generating function of quartic rooted planar Eulerian orientations, counted by vertices.

Terms

    a(0) =4a(1) =35a(2) =402a(3) =5334a(4) =77472a(5) =1197459a(6) =19371000a(7) =324457562a(8) =5585968752a(9) =98334394470

External references