n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 24 |
3 | 192 |
4 | 1792 |
5 | 18240 |
6 | 196224 |
7 | 2194176 |
8 | 25247232 |
9 | 296979456 |
10 | 3555010560 |
11 | 43165900800 |
12 | 530362220544 |
13 | 6581594275840 |
14 | 82373440339968 |
15 | 1038579580796928 |
16 | 13179023462498304 |
17 | 168183976239562752 |
18 | 2157085003249876992 |
19 | 27790652486543474688 |
20 | 359485965093121818624 |
[1,4,24,192,1792,18240,196224,2194176,25247232, 296979456,3555010560,43165900800,530362220544, 6581594275840,82373440339968,1038579580796928, 13179023462498304,168183976239562752, 2157085003249876992,27790652486543474688, 359485965093121818624] |