n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 0 |
4 | 5 |
5 | 1 |
6 | 70 |
7 | 106 |
8 | 2380 |
9 | 12398 |
10 | 184359 |
11 | 1830820 |
12 | 25990371 |
13 | 348029255 |
14 | 531547931 |
15 | 83340599734 |
16 | 1395460803100 |
17 | 24298184539132 |
18 | 442299791441900 |
19 | 8348538362127894 |
20 | 163180897579795284 |
[1,0,1,0,5,1,70,106,2380,12398,184359,1830820, 25990371,348029255,531547931,83340599734, 1395460803100,24298184539132,442299791441900, 8348538362127894,163180897579795284] |