n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 43 |
5 | 555 |
6 | 2603 |
7 | 35371 |
8 | 166443 |
9 | 2263595 |
10 | 136481323 |
11 | 673352235 |
12 | 35033090603 |
13 | 584788904491 |
14 | 2783812160043 |
15 | 37968184248875 |
16 | 2289767997934123 |
17 | 146404956073789995 |
18 | 722865708377213483 |
19 | 37616353855796316715 |
20 | 627912164214501968427 |
21 | 2989095405649324575275 |
[0,1,3,11,43,555,2603,35371,166443,2263595, 136481323,673352235,35033090603,584788904491, 2783812160043,37968184248875,2289767997934123, 146404956073789995,722865708377213483, 37616353855796316715,627912164214501968427, 2989095405649324575275] |