n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 112 |
6 | 568 |
7 | 3032 |
8 | 16768 |
9 | 95200 |
10 | 551616 |
11 | 3248704 |
12 | 19389824 |
13 | 117021824 |
14 | 712934784 |
15 | 4378663296 |
16 | 27081760768 |
17 | 168530142720 |
18 | 1054464293888 |
19 | 6629484729344 |
20 | 41860283723776 |
21 | 265346078982144 |
22 | 1687918305128448 |
23 | 10771600724946944 |
24 | 68941213290561536 |
[1,2,6,24,112,568,3032,16768,95200,551616,3248704, 19389824,117021824,712934784,4378663296, 27081760768,168530142720,1054464293888, 6629484729344,41860283723776,265346078982144, 1687918305128448,10771600724946944, 68941213290561536] |