Number of rooted 2-connected 4-regular maps on the projective plane, which may have loops, with n inner faces.

A318102

Number of rooted 2-connected 4-regular maps on the projective plane, which may have loops, with n inner faces.

Terms

    a(0) =5a(1) =38a(2) =199a(3) =1466a(4) =12365a(5) =109700a(6) =1003929a(7) =9404402a(8) =89690920a(9) =867506788a(10) =8486154214a(11) =83790178300a(12) =833805753167

External references