n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 3 |
4 | 3 |
5 | 13 |
6 | 26 |
7 | 77 |
8 | 192 |
9 | 529 |
10 | 1412 |
11 | 3873 |
12 | 10603 |
13 | 29315 |
14 | 81318 |
15 | 226763 |
16 | 634627 |
17 | 1782637 |
18 | 5022840 |
19 | 14193457 |
20 | 40211105 |
21 | 114191159 |
22 | 324981030 |
23 | 926720807 |
24 | 2647513282 |
25 | 7576475383 |
26 | 21716189676 |
27 | 62336237007 |
28 | 179182653117 |
29 | 515717424109 |
30 | 1486119467026 |
[0,1,0,3,3,13,26,77,192,529,1412,3873,10603,29315, 81318,226763,634627,1782637,5022840,14193457, 40211105,114191159,324981030,926720807,2647513282, 7576475383,21716189676,62336237007,179182653117, 515717424109,1486119467026] |