n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 17 |
3 | 113 |
4 | 529 |
5 | 3377 |
6 | 20113 |
7 | 131761 |
8 | 859921 |
9 | 5818417 |
10 | 39713681 |
11 | 275857841 |
12 | 1933976593 |
13 | 13702864689 |
14 | 97835776145 |
15 | 703688999089 |
16 | 5092141619473 |
17 | 37053507667505 |
18 | 270930428700049 |
19 | 1989695908892593 |
20 | 14669498823228945 |
[1,9,17,113,529,3377,20113,131761,859921,5818417, 39713681,275857841,1933976593,13702864689, 97835776145,703688999089,5092141619473, 37053507667505,270930428700049,1989695908892593, 14669498823228945] |