n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 4 |
5 | 12 |
6 | 30 |
7 | 68 |
8 | 144 |
9 | 291 |
10 | 568 |
11 | 1080 |
12 | 2012 |
13 | 3688 |
14 | 6672 |
15 | 11941 |
16 | 21180 |
17 | 37284 |
18 | 65210 |
19 | 113420 |
20 | 196320 |
21 | 338375 |
22 | 581040 |
23 | 994416 |
24 | 1696824 |
25 | 2887632 |
26 | 4902240 |
27 | 8304073 |
28 | 14038324 |
29 | 23688636 |
30 | 39905238 |
31 | 67118420 |
32 | 112726512 |
33 | 189072363 |
[0,0,0,1,4,12,30,68,144,291,568,1080,2012,3688, 6672,11941,21180,37284,65210,113420,196320,338375, 581040,994416,1696824,2887632,4902240,8304073, 14038324,23688636,39905238,67118420,112726512, 189072363] |