n | a(n) |
---|---|
1 | 15 |
2 | 176 |
3 | 1533 |
4 | 8824 |
5 | 40038 |
6 | 167910 |
7 | 710895 |
8 | 3139374 |
9 | 14621105 |
10 | 73775740 |
11 | 381369393 |
12 | 1896558198 |
13 | 8898865547 |
14 | 40479815828 |
15 | 186751218361 |
16 | 891575695494 |
17 | 4361545055817 |
18 | 21344723416559 |
19 | 102849312863141 |
20 | 487830504402191 |
[15,176,1533,8824,40038,167910,710895,3139374, 14621105,73775740,381369393,1896558198,8898865547, 40479815828,186751218361,891575695494, 4361545055817,21344723416559,102849312863141, 487830504402191] |