516560652
domain: N
Appears in sequences
- Expansion of (1+x)/(1-3*x).at n=18A003946
- a(1)=1, a(2)=2, a(n) = 4*3^(n-3) for n >= 3.at n=19A025579
- a(n) = Sum_{k=0..m} (k+1) * A026120(n, m-k), where m=0 for n=0,1; m=n for n >= 2.at n=18A027327
- Number of compositions of n into 2*j-1 kinds of j's for all j>=1.at n=19A052156
- Number of n-step walks (each step +-1 starting from 0) which are never more than 2 or less than -2.at n=36A068911
- Goedel encoding of the prime factors of n, in increasing order and repeated according to multiplicity.at n=33A074736
- a(n) = 2^A066657(n) * 3^A066658(n).at n=30A076941
- A133566 * A000244.at n=18A133647
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^19 = I.at n=18A168777
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^20 = I.at n=18A168825
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^21 = I.at n=18A168873
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^22 = I.at n=18A168921
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^23 = I.at n=18A168969
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^24 = I.at n=18A169017
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^25 = I.at n=18A169065
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^26 = I.at n=18A169113
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^27 = I.at n=18A169161
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^28 = I.at n=18A169209
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^29 = I.at n=18A169257
- Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^30 = I.at n=18A169305