Number of ordered rooted trees with n non-root nodes such that the maximal outdegree equals ceiling(n/2).

A303259

Number of ordered rooted trees with n non-root nodes such that the maximal outdegree equals ceiling(n/2).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =8a(5) =15a(6) =53a(7) =84a(8) =326a(9) =495a(10) =1997a(11) =3003a(12) =12370a(13) =18564a(14) =77513a(15) =116280a(16) =490306a(17) =735471a(18) =3124541a(19) =4686825a(20) =20030000a(21) =30045015a(22) =129024469a(23) =193536720a(24) =834451788a(25) =1251677700a(26) =5414950283a(27) =8122425444a(28) =35240152706a(29) =52860229080

External references