n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 6 |
5 | 12 |
6 | 20 |
7 | 60 |
8 | 147 |
9 | 384 |
10 | 896 |
11 | 360 |
12 | 1540 |
13 | 2760 |
14 | 2304 |
15 | 11016 |
16 | 13860 |
17 | 6720 |
18 | 123060 |
19 | 255024 |
20 | 658370 |
21 | 1422720 |
22 | 1425606 |
23 | 1179360 |
24 | 2920500 |
25 | 12252240 |
26 | 9989280 |
27 | 24227280 |
28 | 242573760 |
29 | 68424048 |
30 | 990208128 |
31 | 410810400 |
32 | 602751600 |
[1,2,6,12,20,60,147,384,896,360,1540,2760,2304, 11016,13860,6720,123060,255024,658370,1422720, 1425606,1179360,2920500,12252240,9989280,24227280, 242573760,68424048,990208128,410810400,602751600] |