n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 10 |
5 | 25 |
6 | 156 |
7 | 721 |
8 | 5356 |
9 | 40881 |
10 | 366850 |
11 | 3628801 |
12 | 40048086 |
13 | 479001601 |
14 | 6228391456 |
15 | 87184121025 |
16 | 1307724593176 |
17 | 20922789888001 |
18 | 355689166978146 |
19 | 6402373705728001 |
20 | 121645161595446490 |
21 | 2432902128489747201 |
22 | 51090943465394571376 |
23 | 1124000727777607680001 |
[1,2,3,10,25,156,721,5356,40881,366850,3628801, 40048086,479001601,6228391456,87184121025, 1307724593176,20922789888001,355689166978146, 6402373705728001,121645161595446490, 2432902128489747201,51090943465394571376, 1124000727777607680001] |