n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 24 |
7 | 28 |
8 | 128 |
9 | 252 |
10 | 720 |
11 | 1364 |
12 | 3384 |
13 | 6552 |
14 | 14644 |
15 | 29040 |
16 | 61568 |
17 | 122400 |
18 | 253284 |
19 | 504868 |
20 | 1028880 |
21 | 2054416 |
22 | 4150652 |
23 | 8294444 |
24 | 16682552 |
25 | 33349800 |
26 | 66902472 |
27 | 133775964 |
28 | 267991444 |
29 | 535920696 |
30 | 1072788624 |
31 | 2145452092 |
[0,0,0,0,0,0,24,28,128,252,720,1364,3384,6552, 14644,29040,61568,122400,253284,504868,1028880, 2054416,4150652,8294444,16682552,33349800, 66902472,133775964,267991444,535920696,1072788624, 2145452092] |