n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 6 |
4 | 28 |
5 | 36 |
6 | 120 |
7 | 300 |
8 | 528 |
9 | 630 |
10 | 2016 |
11 | 3240 |
12 | 5460 |
13 | 25200 |
14 | 73920 |
15 | 157080 |
16 | 437580 |
17 | 749700 |
18 | 1385280 |
19 | 1493856 |
20 | 2031120 |
21 | 2162160 |
22 | 17907120 |
23 | 76576500 |
24 | 103672800 |
25 | 236215980 |
26 | 842161320 |
27 | 3090906000 |
28 | 4819214400 |
29 | 7589181600 |
30 | 7966312200 |
31 | 13674528000 |
32 | 20366564400 |
[1,3,6,28,36,120,300,528,630,2016,3240,5460,25200, 73920,157080,437580,749700,1385280,1493856, 2031120,2162160,17907120,76576500,103672800, 236215980,842161320,3090906000,4819214400, 7589181600,7966312200,13674528000,20366564400] |