Number of unsensed planar maps with n edges and without loops or parallel edges.
A006395
Number of unsensed planar maps with n edges and without loops or parallel edges.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =5a(5) =14a(6) =42a(7) =150a(8) =624a(9) =2947a(10) =15079a(11) =82607a(12) =474030a(13) =2816952a(14) =17194524a(15) =107226255
External references
- oeis: A006395