Number of n-node connected sensed planar maps with an external face in which all internal faces are triangles.
A378335
Number of n-node connected sensed planar maps with an external face in which all internal faces are triangles.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =23a(4) =114a(5) =675a(6) =4357a(7) =29692a(8) =209933a(9) =1531349a(10) =11439545a(11) =87202034a(12) =676101375a(13) =5319069978a(14) =42378741675a(15) =341403125204
External references
- oeis: A378335