n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 8 |
4 | 15 |
5 | 63 |
6 | 120 |
7 | 440 |
8 | 945 |
9 | 2079 |
10 | 4095 |
11 | 21735 |
12 | 98175 |
13 | 133056 |
14 | 395199 |
15 | 338625 |
16 | 1890945 |
17 | 3501576 |
18 | 8390304 |
19 | 35820225 |
20 | 126775935 |
21 | 149848335 |
22 | 879207616 |
23 | 302464800 |
[2,3,8,15,63,120,440,945,2079,4095,21735,98175, 133056,395199,338625,1890945,3501576,8390304, 35820225,126775935,149848335,879207616,302464800] |