n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 9 |
4 | 81 |
5 | 765 |
6 | 6885 |
7 | 62613 |
8 | 563517 |
9 | 5077569 |
10 | 45701037 |
11 | 411364413 |
12 | 3702279717 |
13 | 33321067929 |
14 | 299889611361 |
15 | 2699011010385 |
16 | 24291099589185 |
17 | 218619937132623 |
18 | 1967579434193607 |
19 | 17708215277809323 |
20 | 159373937500283907 |
[1,1,9,81,765,6885,62613,563517,5077569,45701037, 411364413,3702279717,33321067929,299889611361, 2699011010385,24291099589185,218619937132623, 1967579434193607,17708215277809323, 159373937500283907] |