n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 80 |
3 | 4288 |
4 | 426240 |
5 | 67920896 |
6 | 15873495040 |
7 | 5113806962688 |
8 | 2172417489305600 |
9 | 1176644688113041408 |
10 | 791421023406538096640 |
11 | 647183647775891247857664 |
12 | 632330839348840678513704960 |
[1,4,80,4288,426240,67920896,15873495040, 5113806962688,2172417489305600, 1176644688113041408,791421023406538096640, 647183647775891247857664, 632330839348840678513704960] |