Triangle T(w>=1,1<=n<=w) read by rows: the number of rooted weighted trees with n nodes and weight w.

A303911

Triangle T(w>=1,1<=n<=w) read by rows: the number of rooted weighted trees with n nodes and weight w.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =1a(7) =3a(8) =5a(9) =4a(10) =1a(11) =4a(12) =10a(13) =13a(14) =9a(15) =1a(16) =5a(17) =16a(18) =31a(19) =35a(20) =20a(21) =1a(22) =6a(23) =24a(24) =60a(25) =98a(26) =95a(27) =48a(28) =1a(29) =7

External references