72498
domain: N
Appears in sequences
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (F(2), F(3), F(4), ...), t = A001950 (upper Wythoff sequence).at n=27A025108
- a(n) = Sum_{k=1..n} C(n, floor(n/k)).at n=18A051054
- G.f.: A(x) = 1+x*(1+x*(1+x*(...(1+x*(...)^(-2^n) )...)^-4)^-2)^-1.at n=7A121588
- Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^6 = I.at n=16A163876
- Expansion of Product_{k>=1} ((1 + x^k) * (1 + 2*x^k)).at n=27A266819
- Number of compositions of n with distinct differences up to sign.at n=28A325552
- E.g.f. satisfies A(x) = 1 / (2 - exp(x * A(x)^(1/3)))^3.at n=5A375898