n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 19 |
5 | 150 |
6 | 1497 |
7 | 17955 |
8 | 251681 |
9 | 4036284 |
10 | 72874125 |
11 | 1462571055 |
12 | 32297755803 |
13 | 778188449610 |
14 | 20313917363733 |
15 | 571081958323695 |
16 | 17201321168216385 |
17 | 552635193533958360 |
18 | 18863471310967732473 |
19 | 681711909339186154395 |
20 | 26003437607893415476995 |
[1,0,1,3,19,150,1497,17955,251681,4036284, 72874125,1462571055,32297755803,778188449610, 20313917363733,571081958323695,17201321168216385, 552635193533958360,18863471310967732473, 681711909339186154395,26003437607893415476995] |