n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 15 |
3 | 117 |
4 | 1305 |
5 | 19323 |
6 | 359559 |
7 | 8084205 |
8 | 213425361 |
9 | 6475518675 |
10 | 222088463199 |
11 | 8497641269637 |
12 | 358899729493545 |
13 | 16585866328129803 |
14 | 832523413971932055 |
15 | 45105537151437499197 |
16 | 2623613865509122341921 |
17 | 163070009495928522691875 |
[1,3,15,117,1305,19323,359559,8084205,213425361, 6475518675,222088463199,8497641269637, 358899729493545,16585866328129803, 832523413971932055,45105537151437499197, 2623613865509122341921,163070009495928522691875] |