n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 17 |
4 | 136 |
5 | 1073 |
6 | 10372 |
7 | 105147 |
8 | 1111859 |
9 | 11969879 |
10 | 132339307 |
11 | 1483656527 |
12 | 16847824961 |
13 | 193620920219 |
14 | 2242918877972 |
15 | 26215739119341 |
16 | 308466499187272 |
17 | 3650953780091983 |
18 | 43460429194159752 |
19 | 519724194908777521 |
20 | 6242649556702436466 |
[1,4,17,136,1073,10372,105147,1111859,11969879, 132339307,1483656527,16847824961,193620920219, 2242918877972,26215739119341,308466499187272, 3650953780091983,43460429194159752, 519724194908777521,6242649556702436466] |