n | a(n) |
---|---|
0 | 1 |
1 | 24 |
2 | 450 |
3 | 7700 |
4 | 126126 |
5 | 2018016 |
6 | 31855824 |
7 | 498841200 |
8 | 7773608700 |
9 | 120784604512 |
10 | 1873533922260 |
11 | 29034766346040 |
12 | 449790717967500 |
13 | 6967723880880000 |
14 | 107959904588606400 |
15 | 1673378521123399200 |
16 | 25949671331244477300 |
17 | 402629171550425820000 |
18 | 6250759024406391495000 |
[1,24,450,7700,126126,2018016,31855824,498841200, 7773608700,120784604512,1873533922260, 29034766346040,449790717967500,6967723880880000, 107959904588606400,1673378521123399200, 25949671331244477300,402629171550425820000, 6250759024406391495000] |