n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 1 |
3 | 7 |
4 | 4 |
5 | 49 |
6 | 21 |
7 | 648 |
8 | 245 |
9 | 16475 |
10 | 5184 |
11 | 801489 |
12 | 214175 |
13 | 74700792 |
14 | 16831269 |
15 | 13333992705 |
16 | 2539826928 |
17 | 4558747755857 |
18 | 733369598775 |
19 | 2985167883475040 |
20 | 405728550271273 |
21 | 3743977846899435969 |
22 | 429864175220405760 |
[1,2,1,7,4,49,21,648,245,16475,5184,801489,214175, 74700792,16831269,13333992705,2539826928, 4558747755857,733369598775,2985167883475040, 405728550271273,3743977846899435969, 429864175220405760] |