-849
domain: Z
Appears in sequences
- Trajectory of 16 under map that sends x to 3x - sigma(x).at n=10A058542
- Generalized Catalan numbers C(-2; n).at n=6A064311
- Triangle composed of generalized Catalan numbers.at n=38A064334
- First differences of A142705.at n=33A142888
- G.f. A(x) satisfies A(x) = 1 + x * ((1 - x) / A(x))^(3/2).at n=6A366433
- a(n) = Sum_{k=1..n} (-1)^k*k^3*floor(n/k).at n=10A366917