n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 0 |
11 | 0 |
12 | 1 |
13 | 3 |
14 | 21 |
15 | 546 |
16 | 30368 |
17 | 1782840 |
18 | 95079083 |
19 | 4686063120 |
20 | 220323447962 |
21 | 10090653722861 |
[1,0,0,0,0,0,0,0,0,0,0,0,1,3,21,546,30368,1782840, 95079083,4686063120,220323447962,10090653722861] |