n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 6 |
6 | 16 |
7 | 44 |
8 | 113 |
9 | 290 |
10 | 749 |
11 | 1930 |
12 | 4966 |
13 | 12776 |
14 | 32870 |
15 | 84577 |
16 | 217665 |
17 | 560328 |
18 | 1442893 |
19 | 3716837 |
20 | 9577805 |
21 | 24689612 |
22 | 63667585 |
23 | 164239124 |
24 | 423824628 |
25 | 1094065998 |
26 | 2825169786 |
27 | 7297681867 |
28 | 18856458451 |
29 | 48737762624 |
30 | 126007604078 |
31 | 325873570924 |
32 | 842982118807 |
[0,0,0,1,3,6,16,44,113,290,749,1930,4966,12776, 32870,84577,217665,560328,1442893,3716837,9577805, 24689612,63667585,164239124,423824628,1094065998, 2825169786,7297681867,18856458451,48737762624, 126007604078,325873570924,842982118807] |