n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 10 |
5 | 25 |
6 | 176 |
7 | 721 |
8 | 6406 |
9 | 42561 |
10 | 436402 |
11 | 3628801 |
12 | 48073796 |
13 | 479001601 |
14 | 7116730336 |
15 | 88966701825 |
16 | 1474541093026 |
17 | 20922789888001 |
18 | 400160588853026 |
19 | 6402373705728001 |
20 | 133991603578884052 |
21 | 2457732174030848001 |
22 | 55735573291977790576 |
23 | 1124000727777607680001 |
[1,2,3,10,25,176,721,6406,42561,436402,3628801, 48073796,479001601,7116730336,88966701825, 1474541093026,20922789888001,400160588853026, 6402373705728001,133991603578884052, 2457732174030848001,55735573291977790576, 1124000727777607680001] |