Number of ordered rooted trees with n non-root nodes and all outdegrees <= ten.

A291825

Number of ordered rooted trees with n non-root nodes and all outdegrees <= ten.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =42a(6) =132a(7) =429a(8) =1430a(9) =4862a(10) =16796a(11) =58785a(12) =207999a(13) =742795a(14) =2673760a(15) =9690969a(16) =35337321a(17) =129543843a(18) =477158000a(19) =1765043115a(20) =6554105415a(21) =24421914855a(22) =91289026931a(23) =342225162126

External references