n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 8 |
5 | 50 |
6 | 432 |
7 | 4802 |
8 | 65536 |
9 | 1062882 |
10 | 20000000 |
11 | 428717762 |
12 | 10319560704 |
13 | 275716983698 |
14 | 8099130339328 |
15 | 259492675781250 |
16 | 9007199254740992 |
17 | 336755653118801858 |
18 | 13493281232954916864 |
19 | 576882827135242335362 |
20 | 26214400000000000000000 |
[1,2,8,50,432,4802,65536,1062882,20000000, 428717762,10319560704,275716983698,8099130339328, 259492675781250,9007199254740992, 336755653118801858,13493281232954916864, 576882827135242335362,26214400000000000000000] |