n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 12 |
4 | 34 |
5 | 135 |
6 | 741 |
7 | 5068 |
8 | 40356 |
9 | 362925 |
10 | 3628855 |
11 | 39916866 |
12 | 479001678 |
13 | 6227020891 |
14 | 87178291305 |
15 | 1307674368120 |
16 | 20922789888136 |
17 | 355687428096153 |
18 | 6402373705728171 |
19 | 121645100408832190 |
20 | 2432902008176640210 |
21 | 51090942171709440231 |
22 | 1124000727777607680253 |
[1,2,5,12,34,135,741,5068,40356,362925,3628855, 39916866,479001678,6227020891,87178291305, 1307674368120,20922789888136,355687428096153, 6402373705728171,121645100408832190, 2432902008176640210,51090942171709440231, 1124000727777607680253] |