n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 6 |
4 | 405 |
5 | 5024 |
6 | 31320 |
7 | 133544 |
8 | 446421 |
9 | 1258590 |
10 | 3126724 |
11 | 7042930 |
12 | 14669709 |
13 | 28658436 |
14 | 53069000 |
15 | 93909924 |
16 | 159819965 |
17 | 262913874 |
18 | 419816676 |
19 | 652912510 |
20 | 991835749 |
21 | 1475233800 |
22 | 2152832664 |
23 | 3087838016 |
24 | 4359706245 |
25 | 6067321574 |
26 | 8332617060 |
27 | 11304678954 |
[0,0,6,405,5024,31320,133544,446421,1258590, 3126724,7042930,14669709,28658436,53069000, 93909924,159819965,262913874,419816676,652912510, 991835749,1475233800,2152832664,3087838016, 4359706245,6067321574,8332617060,11304678954] |