n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 60 |
6 | 360 |
7 | 2520 |
8 | 5040 |
9 | 15120 |
10 | 151200 |
11 | 1663200 |
12 | 9979200 |
13 | 129729600 |
14 | 1816214400 |
15 | 27243216000 |
16 | 54486432000 |
17 | 926269344000 |
18 | 5557616064000 |
19 | 105594705216000 |
20 | 1055947052160000 |
21 | 22174888095360000 |
22 | 487847538097920000 |
23 | 11220493376252160000 |
24 | 67322960257512960000 |
[1,1,2,6,12,60,360,2520,5040,15120,151200,1663200, 9979200,129729600,1816214400,27243216000, 54486432000,926269344000,5557616064000, 105594705216000,1055947052160000, 22174888095360000,487847538097920000, 11220493376252160000,67322960257512960000] |