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| n | a(n) |
|---|---|
| 1 | 1072 |
| 2 | 7342 |
| 3 | 43185 |
| 4 | 218680 |
| 5 | 1014946 |
| 6 | 4416061 |
| 7 | 18465586 |
| 8 | 74732823 |
| 9 | 296093261 |
| 10 | 1152271759 |
| 11 | 4431083756 |
| 12 | 16868521712 |
| 13 | 63789520796 |
| 14 | 239860653668 |
| 15 | 898625766687 |
| 16 | 3356121820652 |
| 17 | 12509696905973 |
| 18 | 46549835501331 |
| 19 | 173041037569515 |
[1072,7342,43185,218680,1014946,4416061,18465586, 74732823,296093261,1152271759,4431083756, 16868521712,63789520796,239860653668,898625766687, 3356121820652,12509696905973,46549835501331, 173041037569515] |