n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 0 |
6 | 10 |
7 | 1 |
8 | 0 |
9 | 280 |
10 | 120 |
11 | 1 |
12 | 15400 |
13 | 17160 |
14 | 2080 |
15 | 1401401 |
16 | 3203200 |
17 | 1290640 |
18 | 190623040 |
19 | 775975201 |
20 | 712150400 |
21 | 36321556720 |
22 | 239000886400 |
23 | 413465452401 |
24 | 9339501072000 |
25 | 91625659447400 |
26 | 266045692290560 |
27 | 3216459513124001 |
28 | 42923384190336000 |
29 | 193108117771690680 |
[1,0,0,1,0,0,10,1,0,280,120,1,15400,17160,2080, 1401401,3203200,1290640,190623040,775975201, 712150400,36321556720,239000886400,413465452401, 9339501072000,91625659447400,266045692290560, 3216459513124001,42923384190336000, 193108117771690680] |