n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 5 |
4 | 65 |
5 | 181 |
6 | 3545 |
7 | 11421 |
8 | 243955 |
9 | 829319 |
10 | 17592855 |
11 | 61952605 |
12 | 1284213397 |
13 | 4662579053 |
14 | 94370045311 |
15 | 351914237859 |
16 | 6970771357553 |
17 | 26611889407629 |
18 | 517258600443449 |
19 | 2015559262618275 |
20 | 38540189430369807 |
21 | 152866542948213595 |
[1,3,5,65,181,3545,11421,243955,829319,17592855, 61952605,1284213397,4662579053,94370045311, 351914237859,6970771357553,26611889407629, 517258600443449,2015559262618275, 38540189430369807,152866542948213595] |