Number of Eulerian orientations in the triangular grid graph with n vertices on each side.

A334555

Number of Eulerian orientations in the triangular grid graph with n vertices on each side.

Terms

    a(0) =1a(1) =2a(2) =10a(3) =126a(4) =4058a(5) =335880a(6) =71670920a(7) =39502865556

External references