n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 9 |
6 | 166 |
7 | 3474 |
8 | 36866 |
9 | 345458 |
10 | 2263066 |
11 | 13182593 |
12 | 61265760 |
13 | 260084494 |
14 | 944238967 |
15 | 3208593348 |
16 | 9709481260 |
17 | 27970062531 |
18 | 73672570068 |
19 | 187003944842 |
20 | 441746651920 |
21 | 1014700253185 |
22 | 2196105354893 |
23 | 4653016292528 |
24 | 9374868346319 |
[0,0,0,0,9,166,3474,36866,345458,2263066,13182593, 61265760,260084494,944238967,3208593348, 9709481260,27970062531,73672570068,187003944842, 441746651920,1014700253185,2196105354893, 4653016292528,9374868346319] |