n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 243 |
5 | 2916 |
6 | 43740 |
7 | 787320 |
8 | 16533720 |
9 | 396809280 |
10 | 10713850560 |
11 | 321415516800 |
12 | 10606712054400 |
13 | 381841633958400 |
14 | 14891823724377600 |
15 | 625456596423859200 |
16 | 28145546839073664000 |
17 | 1350986248275535872000 |
[1,3,9,27,243,2916,43740,787320,16533720, 396809280,10713850560,321415516800,10606712054400, 381841633958400,14891823724377600, 625456596423859200,28145546839073664000, 1350986248275535872000] |