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| n | a(n) |
|---|---|
| 2 | 7 |
| 3 | 19 |
| 4 | 37 |
| 5 | 61 |
| 6 | 4651 |
| 7 | 127 |
| 8 | 1273609 |
| 9 | 2685817 |
| 10 | 271 |
| 11 | 331 |
| 12 | 397 |
| 13 | 6431804812640900941 |
| 14 | 547 |
| 15 | 631 |
| 16 | 5613125740675652943160572913465695837595324940170321 |
| 17 | 371281 |
| 18 | 919 |
[7,19,37,61,4651,127,1273609,2685817,271,331,397, 6431804812640900941,547,631, 56131257406756529431605729134656958375953249401703\ 21,371281,919] |