n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 4907776 |
5 | 250334405 |
6 | 4432154880 |
7 | 83634563315 |
8 | 797134274560 |
9 | 5623659900846 |
10 | 41662871239680 |
11 | 222405745759290 |
12 | 917018531400960 |
13 | 4294168964874715 |
14 | 16067910057871616 |
15 | 50983015079601525 |
[0,0,0,4907776,250334405,4432154880,83634563315, 797134274560,5623659900846,41662871239680, 222405745759290,917018531400960,4294168964874715, 16067910057871616,50983015079601525] |