n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 36 |
4 | 340 |
5 | 3955 |
6 | 54495 |
7 | 866250 |
8 | 15585570 |
9 | 312837525 |
10 | 6926344425 |
11 | 167610643200 |
12 | 4399779384000 |
13 | 124490841049575 |
14 | 3776362727011875 |
15 | 122240308063623750 |
16 | 4205265824898888750 |
17 | 153199195863404315625 |
18 | 5891484566433038698125 |
19 | 238487970732928954537500 |
[1,1,5,36,340,3955,54495,866250,15585570, 312837525,6926344425,167610643200,4399779384000, 124490841049575,3776362727011875, 122240308063623750,4205265824898888750, 153199195863404315625,5891484566433038698125, 238487970732928954537500] |