n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 3 |
7 | 17 |
8 | 39 |
9 | 67 |
10 | 157 |
11 | 683 |
12 | 2593 |
13 | 13101 |
14 | 70047 |
15 | 421791 |
16 | 2622253 |
17 | 19003451 |
18 | 153761107 |
19 | 1499143675 |
20 | 15781975001 |
21 | 199989123849 |
22 | 2755107112873 |
[1,1,1,1,1,3,17,39,67,157,683,2593,13101,70047, 421791,2622253,19003451,153761107,1499143675, 15781975001,199989123849,2755107112873] |