47829690

Appears in sequences

• Expansion of g.f.: (1+x)/(1-9*x).at n=8A003952
• a(n) = 10*3^n.at n=14A005052
• a(n) = Sum_{k=0..2n} (k+1) * A025177(n, k).at n=14A027261
• Diagonal of table A062104.at n=17A062107
• Triangle T(n,k) formed by the coordination sequences and the number of leaves for trees.at n=63A158497
• Number of permutations of 2 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.at n=13A159715
• Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^9 = I.at n=8A165219
• 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=8A165788
• 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=8A166368
• 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=8A166543
• 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=8A166933
• 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=8A167111
• 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=8A167659
• 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=8A167908
• 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=8A168687
• 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=8A168735
• 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=8A168783
• 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=8A168831
• Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^21 = I.at n=8A168879
• Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^22 = I.at n=8A168927