n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1855 |
5 | 41873 |
6 | 473414 |
7 | 3759915 |
8 | 23805016 |
9 | 127946132 |
10 | 605565989 |
11 | 2584498046 |
12 | 10113002933 |
13 | 36729043255 |
14 | 124992460002 |
15 | 401590336403 |
16 | 1225697257191 |
17 | 3571954259819 |
18 | 9982155789012 |
19 | 26849512929685 |
[0,0,0,0,1855,41873,473414,3759915,23805016, 127946132,605565989,2584498046,10113002933, 36729043255,124992460002,401590336403, 1225697257191,3571954259819,9982155789012, 26849512929685] |