n | a(n) |
---|---|
1 | 480 |
2 | 123840 |
3 | 3150720 |
4 | 31704960 |
5 | 187502400 |
6 | 812885760 |
7 | 2767107840 |
8 | 8116473600 |
9 | 20671878240 |
10 | 48375619200 |
11 | 102892268160 |
12 | 208111357440 |
13 | 391550752320 |
14 | 713913822720 |
15 | 1230765753600 |
16 | 2077817249280 |
17 | 3348363579840 |
18 | 5333344585920 |
19 | 8152110268800 |
20 | 12384908524800 |
[480,123840,3150720,31704960,187502400,812885760, 2767107840,8116473600,20671878240,48375619200, 102892268160,208111357440,391550752320, 713913822720,1230765753600,2077817249280, 3348363579840,5333344585920,8152110268800, 12384908524800] |