n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 26 |
4 | 100 |
5 | 392 |
6 | 1555 |
7 | 6218 |
8 | 25006 |
9 | 100988 |
10 | 409162 |
11 | 1661948 |
12 | 6764194 |
13 | 27575732 |
14 | 112570675 |
15 | 460058906 |
16 | 1881978694 |
17 | 7704907724 |
18 | 31566153058 |
19 | 129400608044 |
20 | 530734613920 |
21 | 2177792579072 |
22 | 8939838222718 |
23 | 36711025334948 |
[1,2,7,26,100,392,1555,6218,25006,100988,409162, 1661948,6764194,27575732,112570675,460058906, 1881978694,7704907724,31566153058,129400608044, 530734613920,2177792579072,8939838222718, 36711025334948] |