n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 56 |
5 | 600 |
6 | 8432 |
7 | 144816 |
8 | 2892416 |
9 | 66721920 |
10 | 1732489472 |
11 | 50144683776 |
12 | 1604936139776 |
13 | 56236356234240 |
14 | 2137961925773312 |
15 | 87642967518836736 |
16 | 3863105286629851136 |
17 | 182345733925971394560 |
18 | 9130908475775186173952 |
19 | 481864839159167717277696 |
20 | 27108466364634568866922496 |
21 | 1642481780780610712999034880 |
[1,2,6,56,600,8432,144816,2892416,66721920, 1732489472,50144683776,1604936139776, 56236356234240,2137961925773312,87642967518836736, 3863105286629851136,182345733925971394560, 9130908475775186173952,481864839159167717277696, 27108466364634568866922496, 1642481780780610712999034880] |