n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 16 |
5 | 20 |
6 | 168 |
7 | 168 |
8 | 912 |
9 | 972 |
10 | 4620 |
11 | 4840 |
12 | 21064 |
13 | 22360 |
14 | 93912 |
15 | 99080 |
16 | 406416 |
17 | 428876 |
18 | 1739220 |
19 | 1828104 |
20 | 7364236 |
21 | 7716408 |
22 | 30987704 |
23 | 32355664 |
24 | 129676104 |
25 | 135002920 |
26 | 540592520 |
27 | 561188088 |
28 | 2245972472 |
29 | 2325812528 |
[0,0,0,0,16,20,168,168,912,972,4620,4840,21064, 22360,93912,99080,406416,428876,1739220,1828104, 7364236,7716408,30987704,32355664,129676104, 135002920,540592520,561188088,2245972472, 2325812528] |