n | a(n) |
---|---|
1 | 1 |
2 | 20 |
3 | 4620 |
4 | 12697776 |
5 | 159845400 |
6 | 941432800 |
7 | 158800433792 |
8 | 1895312483064000 |
9 | 3438271897004237230080 |
10 | 933561026438040 |
11 | 2562849175892544 |
12 | 640904462719404383808000 |
13 | 1528364130975 |
14 | 2352733350786 |
15 | 959393282698730880000 |
16 | 6142080926952 |
[1,20,4620,12697776,159845400,941432800, 158800433792,1895312483064000, 3438271897004237230080,933561026438040, 2562849175892544,640904462719404383808000, 1528364130975,2352733350786,959393282698730880000, 6142080926952] |