n | a(n) |
---|---|
1 | 2 |
2 | 16 |
3 | 102 |
4 | 528 |
5 | 2470 |
6 | 11016 |
7 | 47950 |
8 | 205792 |
9 | 874998 |
10 | 3694920 |
11 | 15519262 |
12 | 64899456 |
13 | 270415262 |
14 | 1123264408 |
15 | 4653525150 |
16 | 19234571968 |
17 | 79342610902 |
18 | 326704870152 |
19 | 1343120023678 |
20 | 5513861152000 |
21 | 22606830725598 |
22 | 92580354402712 |
23 | 378737813468542 |
24 | 1547884976787648 |
[2,16,102,528,2470,11016,47950,205792,874998, 3694920,15519262,64899456,270415262,1123264408, 4653525150,19234571968,79342610902,326704870152, 1343120023678,5513861152000,22606830725598, 92580354402712,378737813468542,1547884976787648] |