n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 3 |
3 | 8 |
4 | 18 |
5 | 48 |
6 | 109 |
7 | 264 |
8 | 594 |
9 | 1360 |
10 | 2988 |
11 | 6552 |
12 | 14115 |
13 | 30048 |
14 | 63288 |
15 | 131800 |
16 | 271953 |
17 | 555792 |
18 | 1126583 |
19 | 2264472 |
20 | 4518051 |
21 | 8948544 |
22 | 17603781 |
23 | 34405272 |
24 | 66828247 |
25 | 129040704 |
26 | 247765665 |
27 | 473160696 |
28 | 898924929 |
29 | 1699331808 |
30 | 3197083220 |
31 | 5987288352 |
32 | 11162934948 |
[1,0,3,8,18,48,109,264,594,1360,2988,6552,14115, 30048,63288,131800,271953,555792,1126583,2264472, 4518051,8948544,17603781,34405272,66828247, 129040704,247765665,473160696,898924929, 1699331808,3197083220,5987288352,11162934948] |