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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 17 |
| 3 | 689 |
| 4 | 139344 |
| 5 | 142999897 |
| 6 | 748437606081 |
| 7 | 19999400591072512 |
| 8 | 2728539172202554958697 |
| 9 | 1900346273206544901717879089 |
| 10 | 6755797872872106084596492075448192 |
| 11 | 122584407857548123729431742141838309441329 |
| 12 | 11352604691637658946858196503018301306800588837281 |
[1,2,17,689,139344,142999897,748437606081, 19999400591072512,2728539172202554958697, 1900346273206544901717879089, 6755797872872106084596492075448192, 122584407857548123729431742141838309441329, 11352604691637658946858196503018301306800588837281\ ] |