n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 144 |
3 | 10000 |
4 | 960400 |
5 | 112021056 |
6 | 14876193024 |
7 | 2167749739584 |
8 | 338710896810000 |
9 | 55880440123393600 |
10 | 9629613008027474176 |
11 | 1719721549507980904704 |
12 | 316402760115623198128384 |
13 | 59700436261400947600000000 |
[1,4,144,10000,960400,112021056,14876193024, 2167749739584,338710896810000,55880440123393600, 9629613008027474176,1719721549507980904704, 316402760115623198128384, 59700436261400947600000000] |