n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 384 |
5 | 4800 |
6 | 25920 |
7 | 91200 |
8 | 248640 |
9 | 572544 |
10 | 1169280 |
11 | 2183040 |
12 | 3801600 |
13 | 6262080 |
14 | 9856704 |
15 | 14938560 |
16 | 21927360 |
17 | 31315200 |
18 | 43672320 |
19 | 59652864 |
20 | 80000640 |
21 | 105554880 |
22 | 137256000 |
23 | 176151360 |
24 | 223401024 |
25 | 280283520 |
26 | 348201600 |
27 | 428688000 |
28 | 523411200 |
[0,0,0,384,4800,25920,91200,248640,572544,1169280, 2183040,3801600,6262080,9856704,14938560,21927360, 31315200,43672320,59652864,80000640,105554880, 137256000,176151360,223401024,280283520,348201600, 428688000,523411200] |