n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 10 |
6 | 51 |
7 | 319 |
8 | 2311 |
9 | 19061 |
10 | 176311 |
11 | 1807182 |
12 | 20330789 |
13 | 249052162 |
14 | 3299941146 |
15 | 47024161318 |
16 | 717118460091 |
17 | 11653174976469 |
18 | 201017268344079 |
19 | 3668565147279424 |
20 | 70619879085128904 |
21 | 1430052551473860293 |
[1,1,1,1,3,10,51,319,2311,19061,176311,1807182, 20330789,249052162,3299941146,47024161318, 717118460091,11653174976469,201017268344079, 3668565147279424,70619879085128904, 1430052551473860293] |