n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 4 |
5 | 12 |
6 | 17 |
7 | 36 |
8 | 70 |
9 | 123 |
10 | 248 |
11 | 456 |
12 | 865 |
13 | 1656 |
14 | 3098 |
15 | 5907 |
16 | 11164 |
17 | 21108 |
18 | 40049 |
19 | 75708 |
20 | 143422 |
21 | 271563 |
22 | 513968 |
23 | 973392 |
24 | 1842625 |
25 | 3488688 |
26 | 6605426 |
27 | 12505251 |
28 | 23676916 |
29 | 44826780 |
30 | 84869585 |
31 | 160684308 |
[1,0,2,3,4,12,17,36,70,123,248,456,865,1656,3098, 5907,11164,21108,40049,75708,143422,271563,513968, 973392,1842625,3488688,6605426,12505251,23676916, 44826780,84869585,160684308] |