n | a(n) |
---|---|
0 | 1 |
1 | 20 |
2 | 180 |
3 | 960 |
4 | 3380 |
5 | 8424 |
6 | 16320 |
7 | 28800 |
8 | 52020 |
9 | 88660 |
10 | 129064 |
11 | 175680 |
12 | 262080 |
13 | 386920 |
14 | 489600 |
15 | 600960 |
16 | 840500 |
17 | 1137960 |
18 | 1330420 |
19 | 1563840 |
20 | 2050344 |
21 | 2611200 |
22 | 2986560 |
23 | 3358080 |
24 | 4194240 |
25 | 5318268 |
26 | 5878440 |
27 | 6299520 |
28 | 7862400 |
29 | 9619560 |
[1,20,180,960,3380,8424,16320,28800,52020,88660, 129064,175680,262080,386920,489600,600960,840500, 1137960,1330420,1563840,2050344,2611200,2986560, 3358080,4194240,5318268,5878440,6299520,7862400, 9619560] |