n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 0 |
7 | 4 |
8 | 11 |
9 | 42 |
10 | 89 |
11 | 329 |
12 | 1765 |
13 | 9197 |
14 | 45647 |
15 | 284743 |
16 | 1846189 |
17 | 11975869 |
18 | 83259065 |
19 | 621001708 |
20 | 4878630533 |
21 | 39333230881 |
22 | 336375931369 |
23 | 3029241762900 |
24 | 28439270037332 |
25 | 275986675209470 |
26 | 2789712437580722 |
[0,0,0,0,1,0,4,11,42,89,329,1765,9197,45647, 284743,1846189,11975869,83259065,621001708, 4878630533,39333230881,336375931369,3029241762900, 28439270037332,275986675209470,2789712437580722] |