n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 11 |
6 | 41 |
7 | 162 |
8 | 925 |
9 | 5945 |
10 | 47017 |
11 | 402788 |
12 | 3895937 |
13 | 40556595 |
14 | 461544253 |
15 | 5625446270 |
16 | 73716523405 |
17 | 1028179882589 |
18 | 15257484239777 |
19 | 239529471989352 |
20 | 3971376169852777 |
21 | 69288230115817655 |
22 | 1269563315949912469 |
23 | 24366794306903776610 |
24 | 488969030312192567573 |
[1,0,1,1,4,11,41,162,925,5945,47017,402788, 3895937,40556595,461544253,5625446270,73716523405, 1028179882589,15257484239777,239529471989352, 3971376169852777,69288230115817655, 1269563315949912469,24366794306903776610, 488969030312192567573] |