Number of rooted trees with total weight n, where the weight of a node at height k is k (with the root considered to be at level 0).
A117356
Number of rooted trees with total weight n, where the weight of a node at height k is k (with the root considered to be at level 0).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =3a(6) =5a(7) =6a(8) =8a(9) =12a(10) =16a(11) =22a(12) =31a(13) =41a(14) =56a(15) =78a(16) =104a(17) =142a(18) =194a(19) =260a(20) =353a(21) =478a(22) =641a(23) =864a(24) =1164a(25) =1560a(26) =2095a(27) =2810a(28) =3757a(29) =5028
External references
- oeis: A117356