Number of rooted non-separable n-edge maps in the plane (planar with a distinguished outside face).
A103938
Number of rooted non-separable n-edge maps in the plane (planar with a distinguished outside face).
Terms
- a(0) =3a(1) =2a(2) =5a(3) =18a(4) =77a(5) =364a(6) =1836a(7) =9690a(8) =52877a(9) =296010a(10) =1690845a(11) =9817080a(12) =57769740a(13) =343806368a(14) =2065802056a(15) =12515350122a(16) =76367432013a(17) =468922828150
External references
- oeis: A103938