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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 641 |
| 3 | 643 |
| 4 | 4369 |
| 5 | 25759 |
| 6 | 33149 |
| 7 | 87249 |
| 8 | 129917 |
| 9 | 157637 |
| 10 | 212419 |
| 11 | 332947 |
| 12 | 451901 |
| 13 | 656597 |
| 14 | 656599 |
| 15 | 831405 |
| 16 | 1489665 |
| 17 | 1608461 |
| 18 | 2113665 |
| 19 | 3020357 |
| 20 | 3370637 |
| 21 | 6212357 |
| 22 | 6212359 |
| 23 | 19092917 |
| 24 | 31880577 |
| 25 | 34487597 |
| 26 | 38790749 |
| 27 | 63560683 |
| 28 | 81612105 |
| 29 | 84028407 |
| 30 | 86559045 |
| 31 | 274014885 |
[3,641,643,4369,25759,33149,87249,129917,157637, 212419,332947,451901,656597,656599,831405,1489665, 1608461,2113665,3020357,3370637,6212357,6212359, 19092917,31880577,34487597,38790749,63560683, 81612105,84028407,86559045,274014885] |