n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 2 |
4 | 1 |
5 | 0 |
6 | 0 |
7 | 6 |
8 | 20 |
9 | 15 |
10 | 6 |
11 | 1 |
12 | 0 |
13 | 0 |
14 | 0 |
15 | 24 |
16 | 234 |
17 | 672 |
18 | 908 |
19 | 792 |
20 | 495 |
21 | 220 |
22 | 66 |
23 | 12 |
24 | 1 |
25 | 0 |
26 | 0 |
27 | 0 |
28 | 0 |
29 | 120 |
30 | 2544 |
31 | 16880 |
32 | 55000 |
33 | 111225 |
34 | 161660 |
35 | 183006 |
36 | 167660 |
37 | 125945 |
38 | 77520 |
39 | 38760 |
40 | 15504 |
41 | 4845 |
42 | 1140 |
43 | 190 |
44 | 20 |
45 | 1 |
[1,0,2,1,0,0,6,20,15,6,1,0,0,0,24,234,672,908,792, 495,220,66,12,1,0,0,0,0,120,2544,16880,55000, 111225,161660,183006,167660,125945,77520,38760, 15504,4845,1140,190,20,1] |