n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 1 |
10 | 3 |
11 | 8 |
12 | 20 |
13 | 48 |
14 | 112 |
15 | 256 |
16 | 576 |
17 | 1488 |
18 | 3648 |
19 | 8208 |
20 | 18239 |
21 | 40123 |
22 | 87532 |
23 | 189630 |
24 | 408376 |
25 | 932127 |
26 | 2091911 |
27 | 4632601 |
28 | 9939498 |
29 | 21220735 |
30 | 45121371 |
31 | 95597951 |
32 | 201891450 |
[0,0,0,0,0,0,0,0,0,1,3,8,20,48,112,256,576,1488, 3648,8208,18239,40123,87532,189630,408376,932127, 2091911,4632601,9939498,21220735,45121371, 95597951,201891450] |