n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 6 |
7 | 21 |
8 | 56 |
9 | 126 |
10 | 378 |
11 | 3234 |
12 | 34056 |
13 | 289575 |
14 | 2020018 |
15 | 12237225 |
16 | 70634928 |
17 | 468041756 |
18 | 4190274648 |
19 | 45557515620 |
20 | 499503011496 |
21 | 5121432107757 |
22 | 49183015347774 |
23 | 462331794763069 |
24 | 4579813478536296 |
25 | 50959878972009546 |
[1,0,0,0,0,1,6,21,56,126,378,3234,34056,289575, 2020018,12237225,70634928,468041756,4190274648, 45557515620,499503011496,5121432107757, 49183015347774,462331794763069,4579813478536296, 50959878972009546] |