n | a(n) |
---|---|
7 | 1 |
8 | 84 |
9 | 4662 |
10 | 220500 |
11 | 9740115 |
12 | 419625360 |
13 | 18048090060 |
14 | 785470565880 |
15 | 34872721208325 |
16 | 1587323312675100 |
17 | 74301594199682850 |
18 | 3583275362669702700 |
19 | 178220792065162821975 |
20 | 9146316814629741747000 |
21 | 484394828691800237211000 |
[1,84,4662,220500,9740115,419625360,18048090060, 785470565880,34872721208325,1587323312675100, 74301594199682850,3583275362669702700, 178220792065162821975,9146316814629741747000, 484394828691800237211000] |