n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 31 |
4 | 199 |
5 | 1637 |
6 | 8507 |
7 | 24110 |
8 | 95961 |
9 | 355541 |
10 | 1786062 |
11 | 6473791 |
12 | 30649362 |
13 | 109851909 |
14 | 456774199 |
15 | 2589994747 |
16 | 7613644886 |
17 | 37725066313 |
18 | 108500046711 |
[1,5,31,199,1637,8507,24110,95961,355541,1786062, 6473791,30649362,109851909,456774199,2589994747, 7613644886,37725066313,108500046711] |