n | a(n) |
---|---|
1 | 4 |
2 | 8 |
3 | 24 |
4 | 64 |
5 | 200 |
6 | 504 |
7 | 1400 |
8 | 3648 |
9 | 9720 |
10 | 25560 |
11 | 67936 |
12 | 178464 |
13 | 472576 |
14 | 1244208 |
15 | 3286080 |
16 | 8663232 |
17 | 22861600 |
18 | 60291504 |
19 | 159063744 |
20 | 419556560 |
21 | 1106794584 |
22 | 2919596768 |
23 | 7701735288 |
24 | 20316965760 |
25 | 53595401400 |
26 | 141384847344 |
27 | 372973574160 |
28 | 983911970608 |
29 | 2595592842456 |
30 | 6847273559040 |
[4,8,24,64,200,504,1400,3648,9720,25560,67936, 178464,472576,1244208,3286080,8663232,22861600, 60291504,159063744,419556560,1106794584, 2919596768,7701735288,20316965760,53595401400, 141384847344,372973574160,983911970608, 2595592842456,6847273559040] |