n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 26 |
6 | 145 |
7 | 1269 |
8 | 16666 |
9 | 336209 |
10 | 10197321 |
11 | 469338906 |
12 | 32492055785 |
13 | 3394528588557 |
14 | 533338846061070 |
15 | 126158953592584561 |
16 | 44869991848754725313 |
17 | 24002894812644474337158 |
18 | 19303006356138543308410109 |
[2,2,3,7,26,145,1269,16666,336209,10197321, 469338906,32492055785,3394528588557, 533338846061070,126158953592584561, 44869991848754725313,24002894812644474337158, 19303006356138543308410109] |