Number of sensed nonseparable (2-connected) planar maps with n edges and a distinguished face of size 2.
A046650
Number of sensed nonseparable (2-connected) planar maps with n edges and a distinguished face of size 2.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =14a(5) =49a(6) =216a(7) =984a(8) =4862a(9) =24739a(10) =130338a(11) =701584a(12) =3852744a(13) =21489836a(14) =121525520a(15) =695307888a(16) =4019381790a(17) =23446201495a(18) =137875564710a(19) =816646459860
External references
- oeis: A046650