n | a(n) |
---|---|
0 | 1 |
1 | 22 |
2 | 145 |
3 | 715 |
4 | 3151 |
5 | 13207 |
6 | 54055 |
7 | 218695 |
8 | 879751 |
9 | 3528967 |
10 | 14135815 |
11 | 56583175 |
12 | 226412551 |
13 | 905809927 |
14 | 3623559175 |
15 | 14494875655 |
16 | 57980780551 |
17 | 231925678087 |
18 | 927707824135 |
19 | 3710841520135 |
20 | 14843386527751 |
21 | 59373587005447 |
22 | 237494429810695 |
23 | 949977882820615 |
[1,22,145,715,3151,13207,54055,218695,879751, 3528967,14135815,56583175,226412551,905809927, 3623559175,14494875655,57980780551,231925678087, 927707824135,3710841520135,14843386527751, 59373587005447,237494429810695,949977882820615] |