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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 11 |
| 3 | 1247 |
| 4 | 1455913 |
| 5 | 17511093953 |
| 6 | 2169916151129091 |
| 7 | 2770393222231417622719 |
| 8 | 36443188794328204864735075793 |
| 9 | 4939371777650229260975457785579794433 |
| 10 | 6897784079863728378183626237683602071537213179 |
[1,1,11,1247,1455913,17511093953,2169916151129091, 2770393222231417622719, 36443188794328204864735075793, 4939371777650229260975457785579794433, 6897784079863728378183626237683602071537213179] |