n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 26 |
4 | 288 |
5 | 3922 |
6 | 61306 |
7 | 1095334 |
8 | 22024064 |
9 | 494811890 |
10 | 12286580394 |
11 | 334789617934 |
12 | 9932806903938 |
13 | 318975168428126 |
14 | 11023617653687762 |
15 | 408053206977721066 |
16 | 16107473494963662464 |
17 | 675486151816317111506 |
[2,4,26,288,3922,61306,1095334,22024064,494811890, 12286580394,334789617934,9932806903938, 318975168428126,11023617653687762, 408053206977721066,16107473494963662464, 675486151816317111506] |