n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 40 |
3 | 1000 |
4 | 42208 |
5 | 2511904 |
6 | 194701888 |
7 | 18644964160 |
8 | 2128895802880 |
9 | 282664859507200 |
10 | 42830926407126016 |
11 | 7299282818219035648 |
12 | 1382930912338770866176 |
13 | 288548709643121903915008 |
14 | 65787364162207649519116288 |
15 | 16282501210870115738111156224 |
16 | 4350458941547832791800523653120 |
[1,4,40,1000,42208,2511904,194701888,18644964160, 2128895802880,282664859507200,42830926407126016, 7299282818219035648,1382930912338770866176, 288548709643121903915008, 65787364162207649519116288, 16282501210870115738111156224, 4350458941547832791800523653120] |