n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 9 |
5 | 450 |
6 | 14700 |
7 | 23716 |
8 | 11025 |
9 | 5929 |
10 | 3025 |
11 | 27225 |
12 | 14400 |
13 | 42688800 |
14 | 3870830656 |
15 | 9109748025 |
16 | 5288198400 |
17 | 1599516800 |
18 | 1903751424 |
19 | 57588480576 |
20 | 12696964358400 |
21 | 7957646064900 |
22 | 138654025034817600 |
23 | 2784183915021140193408 |
24 | 1052240403785569432896 |
[1,1,4,9,450,14700,23716,11025,5929,3025,27225, 14400,42688800,3870830656,9109748025,5288198400, 1599516800,1903751424,57588480576,12696964358400, 7957646064900,138654025034817600, 2784183915021140193408,1052240403785569432896] |