n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 25 |
4 | 98 |
5 | 462 |
6 | 1716 |
7 | 7293 |
8 | 27170 |
9 | 111826 |
10 | 487084 |
11 | 1822366 |
12 | 7696444 |
13 | 30458900 |
14 | 115000920 |
15 | 455657715 |
16 | 1873956510 |
17 | 7649042610 |
18 | 29135960700 |
19 | 118406633730 |
20 | 466052549820 |
21 | 1786037492460 |
22 | 7227122527560 |
23 | 28473947932950 |
[2,6,25,98,462,1716,7293,27170,111826,487084, 1822366,7696444,30458900,115000920,455657715, 1873956510,7649042610,29135960700,118406633730, 466052549820,1786037492460,7227122527560, 28473947932950] |