n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 2 |
4 | 70 |
5 | 120 |
6 | 357 |
7 | 41496 |
8 | 2016 |
9 | 43605 |
10 | 1180300 |
11 | 17472840 |
12 | 601495180 |
13 | 525594160 |
14 | 58565520300 |
15 | 74066256 |
16 | 3999303586720 |
17 | 8733019680 |
18 | 274477212900 |
19 | 392291457008100 |
20 | 56011301214120 |
21 | 31297881399400 |
22 | 12003126367152512883720 |
23 | 5673579586816030200 |
24 | 1466117956976400 |
25 | 186018119917880598413465400 |
[1,3,2,70,120,357,41496,2016,43605,1180300, 17472840,601495180,525594160,58565520300,74066256, 3999303586720,8733019680,274477212900, 392291457008100,56011301214120,31297881399400, 12003126367152512883720,5673579586816030200, 1466117956976400,186018119917880598413465400] |