n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 55 |
4 | 561 |
5 | 7151 |
6 | 109873 |
7 | 1979503 |
8 | 40949569 |
9 | 956953279 |
10 | 24937424601 |
11 | 717070946087 |
12 | 22555076751793 |
13 | 770416688131663 |
14 | 28399211252136481 |
15 | 1123728578581456351 |
16 | 47508270371060021505 |
17 | 2137250367863029663487 |
18 | 101941438738172545000873 |
19 | 5138752649702088758467159 |
[1,1,7,55,561,7151,109873,1979503,40949569, 956953279,24937424601,717070946087,22555076751793, 770416688131663,28399211252136481, 1123728578581456351,47508270371060021505, 2137250367863029663487,101941438738172545000873, 5138752649702088758467159] |