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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 11 |
| 3 | 31 |
| 4 | 131 |
| 5 | 223 |
| 6 | 521 |
| 7 | 739 |
| 8 | 3391 |
| 9 | 5851 |
| 10 | 9283 |
| 11 | 24419 |
| 12 | 27031 |
| 13 | 59359 |
| 14 | 68963 |
| 15 | 85229 |
| 16 | 110641 |
| 17 | 148931 |
| 18 | 157519 |
| 19 | 175673 |
| 20 | 328579 |
| 21 | 405299 |
| 22 | 571871 |
| 23 | 857471 |
| 24 | 1561013 |
| 25 | 1728121 |
| 26 | 2248223 |
| 27 | 2460511 |
| 28 | 3112283 |
| 29 | 3581731 |
| 30 | 3724031 |
| 31 | 4741801 |
| 32 | 5735519 |
[3,11,31,131,223,521,739,3391,5851,9283,24419, 27031,59359,68963,85229,110641,148931,157519, 175673,328579,405299,571871,857471,1561013, 1728121,2248223,2460511,3112283,3581731,3724031, 4741801,5735519] |