n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 72 |
4 | 1280 |
5 | 25000 |
6 | 544320 |
7 | 13176688 |
8 | 352321536 |
9 | 10331213040 |
10 | 330000000000 |
11 | 11412466824440 |
12 | 425000788033536 |
13 | 16961005969166168 |
14 | 722280443661271040 |
15 | 32696077148437500000 |
16 | 1567973246265311887360 |
17 | 79415065141088329360992 |
18 | 4236296602773593878953984 |
[0,4,72,1280,25000,544320,13176688,352321536, 10331213040,330000000000,11412466824440, 425000788033536,16961005969166168, 722280443661271040,32696077148437500000, 1567973246265311887360,79415065141088329360992, 4236296602773593878953984] |