430467210
domain: N
Appears in sequences
- Expansion of g.f.: (1+x)/(1-9*x).at n=9A003952
- a(n) = 10*3^n.at n=16A005052
- Total number of leaves (nodes of vertex degree 1) in all labeled trees with n nodes.at n=9A055541
- a(n) = n! * [x^n] W(-x)*(W(-x) + 2)/(W(-x) + 1), where W denotes Lambert's W function.at n=9A061302
- Diagonal of table A062104.at n=19A062107
- Expansion of 1/(3*x^2 - 3*x + 1)^2.at n=29A115052
- a(n) = floor(n*3^(n/2)).at n=29A128443
- Triangle T(n,k) formed by the coordination sequences and the number of leaves for trees.at n=64A158497
- Denominator of Bernoulli(n, 1/9).at n=8A158808
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^10 = I.at n=9A165788
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^11 = I.at n=9A166368
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^12 = I.at n=9A166543
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^13 = I.at n=9A166933
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^14 = I.at n=9A167111
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^15 = I.at n=9A167659
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^16 = I.at n=9A167908
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^17 = I.at n=9A168687
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^18 = I.at n=9A168735
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^19 = I.at n=9A168783
- Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^20 = I.at n=9A168831