33219
domain: N
Appears in sequences
- a(n) = floor(10000*log_2(n)).at n=9A004268
- a(n) = round(10000*log_2(n)).at n=9A004269
- Triangle read by rows: T(n,k) is the number of 0-1-2 trees (i.e., ordered trees with all vertices of outdegree at most two) with n edges and k pairs of adjacent vertices of outdegree 2.at n=46A126218
- Square array, read by antidiagonals, used to recursively calculate the zigzag numbers A000111.at n=47A185414
- Expansion of Product_{k>=1} (1 + x^(3*k-1))^(3*k-1).at n=38A262948
- a(n) = 2^n + 2*n^2 + 1.at n=15A322593
- a(n) = Sum_{k=1..n} k^2 * floor(n/k)^3.at n=22A350124