n | a(n) |
---|---|
0 | 2 |
1 | 3 |
2 | 10 |
3 | 42 |
4 | 198 |
5 | 1001 |
6 | 5304 |
7 | 29070 |
8 | 163438 |
9 | 937365 |
10 | 5462730 |
11 | 32256120 |
12 | 192565800 |
13 | 1160346492 |
14 | 7048030544 |
15 | 43108428198 |
16 | 265276342782 |
17 | 1641229898525 |
18 | 10202773534590 |
19 | 63698396932170 |
20 | 399223286267190 |
21 | 2510857763851185 |
22 | 15842014607109600 |
[2,3,10,42,198,1001,5304,29070,163438,937365, 5462730,32256120,192565800,1160346492,7048030544, 43108428198,265276342782,1641229898525, 10202773534590,63698396932170,399223286267190, 2510857763851185,15842014607109600] |