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n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 82 |
5 | 210 |
6 | 24604 |
7 | 157700 |
8 | 153363108 |
9 | 4197081428 |
10 | 19984585910224 |
[1,2,2,82,210,24604,157700,153363108,4197081428, 19984585910224] |