n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 9 |
4 | 46 |
5 | 385 |
6 | 3216 |
7 | 37429 |
8 | 451396 |
9 | 6569553 |
10 | 103389580 |
11 | 1854784261 |
12 | 35697296064 |
13 | 762180320785 |
14 | 17415193181946 |
15 | 431287810513785 |
16 | 11393904725151736 |
17 | 321968806408512385 |
18 | 9643386251348250588 |
[1,2,9,46,385,3216,37429,451396,6569553,103389580, 1854784261,35697296064,762180320785, 17415193181946,431287810513785,11393904725151736, 321968806408512385,9643386251348250588] |