n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 17 |
6 | 70 |
7 | 401 |
8 | 2969 |
9 | 27140 |
10 | 296824 |
11 | 3805050 |
12 | 56375499 |
13 | 955491092 |
14 | 18372395618 |
15 | 397763836270 |
16 | 9625919876062 |
17 | 258564672432833 |
18 | 7659052858050807 |
19 | 248738123007194830 |
20 | 8812695551133726251 |
21 | 339191479636896892415 |
22 | 14131494196304254373334 |
[1,1,2,3,6,17,70,401,2969,27140,296824,3805050, 56375499,955491092,18372395618,397763836270, 9625919876062,258564672432833,7659052858050807, 248738123007194830,8812695551133726251, 339191479636896892415,14131494196304254373334] |