n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 42 |
3 | 774 |
4 | 19440 |
5 | 605520 |
6 | 22856400 |
7 | 1012258800 |
8 | 51590125440 |
9 | 2974547691360 |
10 | 191478611348640 |
11 | 13613255894921760 |
12 | 1059445820574741600 |
13 | 89583977589282015840 |
14 | 8178390058456647469440 |
15 | 801733426581997672963200 |
[1,3,42,774,19440,605520,22856400,1012258800, 51590125440,2974547691360,191478611348640, 13613255894921760,1059445820574741600, 89583977589282015840,8178390058456647469440, 801733426581997672963200] |