n | a(n) |
---|---|
3 | 0 |
4 | 0 |
5 | 6 |
6 | 3 |
7 | 3 |
8 | 36 |
9 | 55 |
10 | 88 |
11 | 293 |
12 | 622 |
13 | 1275 |
14 | 3321 |
15 | 8111 |
16 | 19719 |
17 | 50176 |
18 | 127767 |
19 | 330678 |
20 | 860375 |
21 | 2243544 |
22 | 5920336 |
23 | 15645065 |
24 | 41326177 |
25 | 109675127 |
26 | 291443985 |
27 | 774395373 |
28 | 2061553580 |
29 | 5495695788 |
30 | 14661522117 |
31 | 39166097080 |
[0,0,6,3,3,36,55,88,293,622,1275,3321,8111,19719, 50176,127767,330678,860375,2243544,5920336, 15645065,41326177,109675127,291443985,774395373, 2061553580,5495695788,14661522117,39166097080] |