Number of inequivalent leaf-colorings of series-reduced rooted trees with n nodes.
A318231
Number of inequivalent leaf-colorings of series-reduced rooted trees with n nodes.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =3a(4) =9a(5) =23a(6) =73a(7) =229a(8) =796a(9) =2891a(10) =11118a(11) =44695a(12) =187825a(13) =820320a(14) =3716501a(15) =17413308a(16) =84209071a(17) =419461933a(18) =2148673503a(19) =11301526295a(20) =60956491070a(21) =336744177291
External references
- oeis: A318231