n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 29 |
4 | 131 |
5 | 619 |
6 | 3013 |
7 | 14854 |
8 | 73996 |
9 | 372023 |
10 | 1883369 |
11 | 9591012 |
12 | 49091034 |
13 | 252371780 |
14 | 1302419484 |
15 | 6744389329 |
16 | 35031370911 |
17 | 182457629783 |
18 | 952674694705 |
19 | 4985494458892 |
20 | 26143834054498 |
21 | 137358293523986 |
22 | 722938114992478 |
[1,2,6,29,131,619,3013,14854,73996,372023,1883369, 9591012,49091034,252371780,1302419484,6744389329, 35031370911,182457629783,952674694705, 4985494458892,26143834054498,137358293523986, 722938114992478] |