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| n | a(n) |
|---|---|
| 1 | 25 |
| 2 | 182 |
| 3 | 1308 |
| 4 | 9455 |
| 5 | 68201 |
| 6 | 492373 |
| 7 | 3553425 |
| 8 | 25648639 |
| 9 | 185120173 |
| 10 | 1336151135 |
| 11 | 9643879893 |
| 12 | 69606629219 |
| 13 | 502398343961 |
| 14 | 3626155026415 |
| 15 | 26172443105853 |
| 16 | 188904494286595 |
| 17 | 1363453261197601 |
| 18 | 9840977730403175 |
| 19 | 71029086440088981 |
[25,182,1308,9455,68201,492373,3553425,25648639, 185120173,1336151135,9643879893,69606629219, 502398343961,3626155026415,26172443105853, 188904494286595,1363453261197601,9840977730403175, 71029086440088981] |