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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 34 |
| 4 | 7343 |
| 5 | 304186 |
| 6 | 1709852332 |
| 7 | 702998475376 |
| 8 | 94473463102448047 |
| 9 | 417235486592360297626 |
| 10 | 1273060578884483984898786092 |
| 11 | 63478599188626680785194983697744 |
| 12 | 4243780803142765740205701619107014789924 |
[1,1,7,34,7343,304186,1709852332,702998475376, 94473463102448047,417235486592360297626, 1273060578884483984898786092, 63478599188626680785194983697744, 4243780803142765740205701619107014789924] |