n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 20 |
5 | 133 |
6 | 1070 |
7 | 10705 |
8 | 125512 |
9 | 1717321 |
10 | 26518138 |
11 | 459336605 |
12 | 8787628060 |
13 | 184388779469 |
14 | 4205082557286 |
15 | 103631769297641 |
16 | 2743399950572304 |
17 | 77654985344871313 |
18 | 2340183966373322610 |
[0,1,2,5,20,133,1070,10705,125512,1717321, 26518138,459336605,8787628060,184388779469, 4205082557286,103631769297641,2743399950572304, 77654985344871313,2340183966373322610] |