n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 21 |
4 | 76 |
5 | 276 |
6 | 1001 |
7 | 3626 |
8 | 13126 |
9 | 47501 |
10 | 171876 |
11 | 621876 |
12 | 2250001 |
13 | 8140626 |
14 | 29453126 |
15 | 106562501 |
16 | 385546876 |
17 | 1394921876 |
18 | 5046875001 |
19 | 18259765626 |
20 | 66064453126 |
21 | 239023437501 |
22 | 864794921876 |
23 | 3128857421876 |
24 | 11320312500001 |
[1,2,6,21,76,276,1001,3626,13126,47501,171876, 621876,2250001,8140626,29453126,106562501, 385546876,1394921876,5046875001,18259765626, 66064453126,239023437501,864794921876, 3128857421876,11320312500001] |