n | a(n) |
---|---|
2 | 1 |
3 | 15 |
4 | 390 |
5 | 21010 |
6 | 1806015 |
7 | 123582921 |
8 | 7932838172 |
9 | 541388995092 |
10 | 35637846633315 |
11 | 2098170095389555 |
12 | 113237331813959034 |
13 | 5754386605886291022 |
14 | 280189305372079613419 |
15 | 13193562175797681608910 |
16 | 603200922513642478421880 |
[1,15,390,21010,1806015,123582921,7932838172, 541388995092,35637846633315,2098170095389555, 113237331813959034,5754386605886291022, 280189305372079613419,13193562175797681608910, 603200922513642478421880] |