n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 15 |
4 | 102 |
5 | 861 |
6 | 8598 |
7 | 98547 |
8 | 1270160 |
9 | 18138601 |
10 | 283754826 |
11 | 4818884319 |
12 | 88186786020 |
13 | 1728395865021 |
14 | 36091833338174 |
15 | 799408841413051 |
16 | 18708996086926272 |
17 | 461095012437724881 |
18 | 11931573394008790290 |
[1,3,15,102,861,8598,98547,1270160,18138601, 283754826,4818884319,88186786020,1728395865021, 36091833338174,799408841413051,18708996086926272, 461095012437724881,11931573394008790290] |