Number of unsensed loopless planar maps with n edges.
A006391
Number of unsensed loopless planar maps with n edges.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =45a(6) =191a(7) =871a(8) =4682a(9) =27336a(10) =172706a(11) =1150322a(12) =7989004
External references
- oeis: A006391