n | a(n) |
---|---|
3 | 0 |
4 | 2 |
5 | 1 |
6 | 6 |
7 | 6 |
8 | 23 |
9 | 36 |
10 | 119 |
11 | 227 |
12 | 589 |
13 | 1359 |
14 | 3188 |
15 | 7670 |
16 | 18602 |
17 | 44166 |
18 | 112968 |
19 | 277559 |
20 | 709844 |
21 | 1822376 |
22 | 4722522 |
23 | 12264221 |
24 | 32333400 |
25 | 84913975 |
26 | 224483618 |
27 | 594320672 |
28 | 1574948429 |
29 | 4178364647 |
30 | 11090768762 |
[0,2,1,6,6,23,36,119,227,589,1359,3188,7670,18602, 44166,112968,277559,709844,1822376,4722522, 12264221,32333400,84913975,224483618,594320672, 1574948429,4178364647,11090768762] |