n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 9 |
5 | 25 |
6 | 81 |
7 | 559 |
8 | 6336 |
9 | 95947 |
10 | 1549728 |
11 | 36536673 |
12 | 1325100728 |
13 | 67670472497 |
14 | 4585160114565 |
15 | 421563951431911 |
[1,1,1,9,25,81,559,6336,95947,1549728,36536673, 1325100728,67670472497,4585160114565, 421563951431911] |