n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 6 |
6 | 16 |
7 | 43 |
8 | 110 |
9 | 284 |
10 | 733 |
11 | 1886 |
12 | 4853 |
13 | 12486 |
14 | 32121 |
15 | 82647 |
16 | 212699 |
17 | 547552 |
18 | 1410023 |
19 | 3632260 |
20 | 9360140 |
21 | 24129284 |
22 | 62224692 |
23 | 160522287 |
24 | 414246823 |
25 | 1069376386 |
26 | 2761502201 |
27 | 7133442743 |
28 | 18432633823 |
29 | 47643696626 |
30 | 123182434292 |
31 | 318575889057 |
32 | 824125660356 |
[0,0,0,1,3,6,16,43,110,284,733,1886,4853,12486, 32121,82647,212699,547552,1410023,3632260,9360140, 24129284,62224692,160522287,414246823,1069376386, 2761502201,7133442743,18432633823,47643696626, 123182434292,318575889057,824125660356] |