n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 15 |
3 | 70 |
4 | 105 |
5 | 2310 |
6 | 5005 |
7 | 30030 |
8 | 255255 |
9 | 3233230 |
10 | 969969 |
11 | 44618574 |
12 | 37182145 |
13 | 223092870 |
14 | 3234846615 |
15 | 66853496710 |
16 | 100280245065 |
17 | 200560490130 |
18 | 1236789689135 |
19 | 7420738134810 |
20 | 30425026352721 |
[1,6,15,70,105,2310,5005,30030,255255,3233230, 969969,44618574,37182145,223092870,3234846615, 66853496710,100280245065,200560490130, 1236789689135,7420738134810,30425026352721] |