n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 40 |
6 | 80 |
7 | 140 |
8 | 280 |
9 | 504 |
10 | 1008 |
11 | 1848 |
12 | 3696 |
13 | 6864 |
14 | 13728 |
15 | 25740 |
16 | 51480 |
17 | 97240 |
18 | 194480 |
19 | 369512 |
20 | 739024 |
21 | 1410864 |
22 | 2821728 |
23 | 5408312 |
24 | 10816624 |
25 | 20801200 |
26 | 41602400 |
27 | 80233200 |
28 | 160466400 |
29 | 310235040 |
30 | 620470080 |
31 | 1202160780 |
32 | 2404321560 |
33 | 4667212440 |
[1,1,2,6,24,40,80,140,280,504,1008,1848,3696,6864, 13728,25740,51480,97240,194480,369512,739024, 1410864,2821728,5408312,10816624,20801200, 41602400,80233200,160466400,310235040,620470080, 1202160780,2404321560,4667212440] |