Number of nonseparable trivalent maps with n nodes up to orientation preserving automorphisms.
A341855
Number of nonseparable trivalent maps with n nodes up to orientation preserving automorphisms.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =20a(4) =93a(5) =554a(6) =3554a(7) =24256a(8) =171676a(9) =1255194a(10) =9399396a(11) =71837656a(12) =558420702a(13) =4404369524a(14) =35176227916a(15) =284034186632
External references
- oeis: A341855