Number of rooted simplicial 3-polytopes with n+3 nodes; or rooted 3-connected triangulations with 2n+2 faces; or rooted 3-connected trivalent maps with 2n+2 vertices.
A000260
Number of rooted simplicial 3-polytopes with n+3 nodes; or rooted 3-connected triangulations with 2n+2 faces; or rooted 3-connected trivalent maps with 2n+2 vertices.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =68a(5) =399a(6) =2530a(7) =16965a(8) =118668a(9) =857956a(10) =6369883a(11) =48336171a(12) =373537388a(13) =2931682810a(14) =23317105140a(15) =187606350645
External references
- oeis: A000260