n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 27 |
4 | 135 |
5 | 891 |
6 | 5103 |
7 | 31347 |
8 | 185895 |
9 | 1121931 |
10 | 6711903 |
11 | 40330467 |
12 | 241805655 |
13 | 1451365371 |
14 | 8706597903 |
15 | 52244370387 |
16 | 313451873415 |
17 | 1880754287211 |
18 | 11284396583103 |
19 | 67706766919107 |
20 | 406239439253175 |
21 | 2437440122303451 |
22 | 14624630273467503 |
23 | 87747813021864627 |
24 | 526486783988008935 |
[0,1,3,27,135,891,5103,31347,185895,1121931, 6711903,40330467,241805655,1451365371,8706597903, 52244370387,313451873415,1880754287211, 11284396583103,67706766919107,406239439253175, 2437440122303451,14624630273467503, 87747813021864627,526486783988008935] |