n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 1 |
5 | 15 |
6 | 45 |
7 | 1 |
8 | 105 |
9 | 180 |
10 | 585 |
11 | 1 |
12 | 425 |
13 | 2700 |
14 | 2925 |
15 | 9945 |
16 | 1 |
17 | 3075 |
18 | 34650 |
19 | 52650 |
20 | 59670 |
21 | 208845 |
22 | 1 |
23 | 15855 |
24 | 308700 |
25 | 1248975 |
26 | 1253070 |
27 | 1461915 |
28 | 5221125 |
29 | 1 |
30 | 123515 |
31 | 4475520 |
32 | 23689575 |
33 | 33972120 |
34 | 35085960 |
35 | 41769000 |
[1,1,5,1,15,45,1,105,180,585,1,425,2700,2925,9945, 1,3075,34650,52650,59670,208845,1,15855,308700, 1248975,1253070,1461915,5221125,1,123515,4475520, 23689575,33972120,35085960,41769000] |