n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 4 |
4 | 12 |
5 | 31 |
6 | 73 |
7 | 162 |
8 | 344 |
9 | 707 |
10 | 1416 |
11 | 2778 |
12 | 5358 |
13 | 10188 |
14 | 19139 |
15 | 35582 |
16 | 65556 |
17 | 119825 |
18 | 217487 |
19 | 392286 |
20 | 703618 |
21 | 1255669 |
22 | 2230608 |
23 | 3946020 |
24 | 6954060 |
25 | 12212280 |
26 | 21377365 |
27 | 37309288 |
28 | 64935132 |
29 | 112726771 |
30 | 195224773 |
31 | 337343034 |
32 | 581700476 |
[0,0,1,4,12,31,73,162,344,707,1416,2778,5358, 10188,19139,35582,65556,119825,217487,392286, 703618,1255669,2230608,3946020,6954060,12212280, 21377365,37309288,64935132,112726771,195224773, 337343034,581700476] |