n | a(n) |
---|---|
0 | 1 |
1 | 41 |
2 | 1640 |
3 | 65600 |
4 | 2624000 |
5 | 104960000 |
6 | 4198400000 |
7 | 167936000000 |
8 | 6717440000000 |
9 | 268697600000000 |
10 | 10747904000000000 |
11 | 429916160000000000 |
12 | 17196646400000000000 |
13 | 687865856000000000000 |
14 | 27514634240000000000000 |
15 | 1100585369600000000000000 |
[1,41,1640,65600,2624000,104960000,4198400000, 167936000000,6717440000000,268697600000000, 10747904000000000,429916160000000000, 17196646400000000000,687865856000000000000, 27514634240000000000000,1100585369600000000000000] |