n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 1 |
7 | 14 |
8 | 105 |
9 | 560 |
10 | 2380 |
11 | 8568 |
12 | 27132 |
13 | 77521 |
14 | 203518 |
15 | 497826 |
16 | 1148126 |
17 | 2527609 |
18 | 5401676 |
19 | 11508168 |
20 | 25437917 |
21 | 60978022 |
22 | 162008098 |
23 | 468103230 |
24 | 1409724358 |
25 | 4259541790 |
26 | 12617126893 |
27 | 36241765553 |
28 | 100599743538 |
29 | 269998374114 |
30 | 702694008002 |
[0,0,0,0,0,0,1,14,105,560,2380,8568,27132,77521, 203518,497826,1148126,2527609,5401676,11508168, 25437917,60978022,162008098,468103230,1409724358, 4259541790,12617126893,36241765553,100599743538, 269998374114,702694008002] |