n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 55 |
4 | 375 |
5 | 3731 |
6 | 47743 |
7 | 777771 |
8 | 14770535 |
9 | 331611235 |
10 | 9205305591 |
11 | 285781156343 |
12 | 10308779559631 |
13 | 418386835375575 |
14 | 18097509979840775 |
15 | 846748292083023991 |
16 | 44182142790019823943 |
17 | 2570069981187508600331 |
18 | 157428743473326543397855 |
19 | 10449715795107936675445215 |
20 | 739751959772798881608189731 |
[1,3,11,55,375,3731,47743,777771,14770535, 331611235,9205305591,285781156343,10308779559631, 418386835375575,18097509979840775, 846748292083023991,44182142790019823943, 2570069981187508600331,157428743473326543397855, 10449715795107936675445215, 739751959772798881608189731] |