n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 0 |
4 | 2 |
5 | 4 |
6 | 0 |
7 | 2 |
8 | 10 |
9 | 32 |
10 | 38 |
11 | 140 |
12 | 496 |
13 | 1186 |
14 | 3178 |
15 | 16792 |
16 | 82038 |
17 | 289566 |
18 | 1139874 |
19 | 5914118 |
20 | 33800010 |
21 | 142337180 |
22 | 721286448 |
23 | 4384569864 |
[1,1,0,0,2,4,0,2,10,32,38,140,496,1186,3178,16792, 82038,289566,1139874,5914118,33800010,142337180, 721286448,4384569864] |