n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 40 |
4 | 202 |
5 | 1011 |
6 | 5058 |
7 | 25290 |
8 | 126452 |
9 | 632261 |
10 | 3161308 |
11 | 15806540 |
12 | 79032702 |
13 | 395163511 |
14 | 1975817558 |
15 | 9879087790 |
16 | 49395438952 |
17 | 246977194761 |
18 | 1234885973808 |
19 | 6174429869040 |
20 | 30872149345202 |
21 | 154360746726011 |
22 | 771803733630058 |
[1,8,40,202,1011,5058,25290,126452,632261,3161308, 15806540,79032702,395163511,1975817558,9879087790, 49395438952,246977194761,1234885973808, 6174429869040,30872149345202,154360746726011, 771803733630058] |