n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 1 |
11 | 3 |
12 | 8 |
13 | 20 |
14 | 48 |
15 | 112 |
16 | 256 |
17 | 576 |
18 | 1280 |
19 | 3280 |
20 | 7968 |
21 | 17840 |
22 | 39487 |
23 | 86587 |
24 | 188396 |
25 | 407230 |
26 | 875320 |
27 | 1872332 |
28 | 4218648 |
29 | 9382099 |
30 | 20646176 |
31 | 44125836 |
32 | 93902740 |
[0,0,0,0,0,0,0,0,0,0,1,3,8,20,48,112,256,576,1280, 3280,7968,17840,39487,86587,188396,407230,875320, 1872332,4218648,9382099,20646176,44125836, 93902740] |