n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 39 |
4 | 321 |
5 | 3603 |
6 | 51391 |
7 | 884873 |
8 | 17770445 |
9 | 406673247 |
10 | 10431884283 |
11 | 296262164637 |
12 | 9224841015745 |
13 | 312441152401067 |
14 | 11434829066996087 |
15 | 449675059390576257 |
16 | 18908960744072894325 |
17 | 846638474386244188311 |
18 | 40213487658138717885907 |
19 | 2019543479160709325145893 |
[1,2,7,39,321,3603,51391,884873,17770445, 406673247,10431884283,296262164637,9224841015745, 312441152401067,11434829066996087, 449675059390576257,18908960744072894325, 846638474386244188311,40213487658138717885907, 2019543479160709325145893] |