Number of rooted trees with n nodes and 4-colored non-root nodes.
A052763
Number of rooted trees with n nodes and 4-colored non-root nodes.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =26a(4) =188a(5) =1499a(6) =12628a(7) =111064a(8) =1006840a(9) =9345761a(10) =88371580a(11) =848273424a(12) =8244075700a(13) =80959901281a(14) =802137370804
External references
- oeis: A052763