n | a(n) |
---|---|
0 | 2 |
1 | 10 |
2 | 140 |
3 | 2940 |
4 | 77616 |
5 | 2378376 |
6 | 80978040 |
7 | 2982691140 |
8 | 116776877360 |
9 | 4800591267472 |
10 | 205384736883872 |
11 | 9084324900632800 |
12 | 413286869105712000 |
13 | 19262120149391220000 |
14 | 916763612521908006000 |
15 | 44440565510927197408500 |
16 | 2189466044883038600910000 |
[2,10,140,2940,77616,2378376,80978040,2982691140, 116776877360,4800591267472,205384736883872, 9084324900632800,413286869105712000, 19262120149391220000,916763612521908006000, 44440565510927197408500,2189466044883038600910000] |