n | a(n) |
---|---|
1 | 3 |
2 | 11 |
3 | 76 |
4 | 408 |
5 | 2025 |
6 | 10548 |
7 | 55431 |
8 | 289038 |
9 | 1506376 |
10 | 7857827 |
11 | 40992713 |
12 | 213825921 |
13 | 1115337571 |
14 | 5817828688 |
15 | 30347027526 |
16 | 158296067515 |
17 | 825703442256 |
18 | 4307033134922 |
19 | 22466340292902 |
20 | 117188887827705 |
21 | 611280485474823 |
[3,11,76,408,2025,10548,55431,289038,1506376, 7857827,40992713,213825921,1115337571,5817828688, 30347027526,158296067515,825703442256, 4307033134922,22466340292902,117188887827705, 611280485474823] |