n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 10 |
3 | 57 |
4 | 292 |
5 | 1585 |
6 | 9726 |
7 | 68425 |
8 | 547912 |
9 | 4931937 |
10 | 49320370 |
11 | 542525401 |
12 | 6510306540 |
13 | 84633987217 |
14 | 1184875823782 |
15 | 17773137360105 |
16 | 284370197765776 |
17 | 4834293362023105 |
18 | 87017280516421722 |
19 | 1653328329812019577 |
20 | 33066566596240399540 |
21 | 694397898521048399601 |
[0,1,10,57,292,1585,9726,68425,547912,4931937, 49320370,542525401,6510306540,84633987217, 1184875823782,17773137360105,284370197765776, 4834293362023105,87017280516421722, 1653328329812019577,33066566596240399540, 694397898521048399601] |