n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 13 |
4 | 80 |
5 | 693 |
6 | 8407 |
7 | 142362 |
8 | 3357612 |
9 | 110120153 |
10 | 5016480073 |
11 | 317135545779 |
12 | 27803984036400 |
13 | 3378700619148221 |
14 | 568830517952061132 |
15 | 132632829107728951932 |
16 | 42817890108690930718624 |
[1,3,13,80,693,8407,142362,3357612,110120153, 5016480073,317135545779,27803984036400, 3378700619148221,568830517952061132, 132632829107728951932,42817890108690930718624] |