n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 10 |
4 | 72 |
5 | 819 |
6 | 11772 |
7 | 206572 |
8 | 4196352 |
9 | 96871525 |
10 | 2500050000 |
11 | 71328400806 |
12 | 2229026605056 |
13 | 75718793541895 |
14 | 2778001759096256 |
15 | 109473473278652344 |
16 | 4611686020574871552 |
17 | 206810065502975099529 |
[1,1,2,10,72,819,11772,206572,4196352,96871525, 2500050000,71328400806,2229026605056, 75718793541895,2778001759096256, 109473473278652344,4611686020574871552, 206810065502975099529] |