n | a(n) |
---|---|
1 | 6 |
2 | 15 |
3 | 105 |
4 | 231 |
5 | 2211 |
6 | 3003 |
7 | 20301 |
8 | 112101 |
9 | 2003001 |
10 | 122000010 |
11 | 200030001 |
12 | 20000300001 |
13 | 2000003000001 |
14 | 200000030000001 |
15 | 20000000300000001 |
16 | 2000000003000000001 |
17 | 200000000030000000001 |
18 | 20000000000300000000001 |
19 | 2000000000003000000000001 |
[6,15,105,231,2211,3003,20301,112101,2003001, 122000010,200030001,20000300001,2000003000001, 200000030000001,20000000300000001, 2000000003000000001,200000000030000000001, 20000000000300000000001,2000000000003000000000001] |