820784250
domain: N
Appears in sequences
- Stirling numbers of second kind S2(16,n).at n=8A011565
- Stirling numbers of second kind: 9th column of Stirling2 triangle A008277.at n=7A049447
- O.g.f.: Sum_{n>=1} (n^2)^(n-1) * exp(-n^2*x) * x^n / n!.at n=8A217899
- Number of set partitions of [n] where each subset is again partitioned into nine nonempty subsets.at n=16A327510