Number of sensed combinatorial maps with n edges and 2 vertices.
A380618
Number of sensed combinatorial maps with n edges and 2 vertices.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =38a(4) =275a(5) =2614a(6) =30346a(7) =415360a(8) =6513999a(9) =115063118a(10) =2259975228a(11) =48860184539
External references
- oeis: A380618