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| n | a(n) |
|---|---|
| 1 | 137 |
| 2 | 521 |
| 3 | 1721 |
| 4 | 3257 |
| 5 | 4217 |
| 6 | 5897 |
| 7 | 6521 |
| 8 | 7177 |
| 9 | 9337 |
| 10 | 10937 |
| 11 | 13577 |
| 12 | 15497 |
| 13 | 18617 |
| 14 | 20857 |
| 15 | 27017 |
| 16 | 41737 |
| 17 | 55817 |
| 18 | 65657 |
| 19 | 80777 |
| 20 | 90121 |
| 21 | 105097 |
| 22 | 113017 |
| 23 | 118457 |
| 24 | 126857 |
| 25 | 141497 |
| 26 | 163337 |
| 27 | 173177 |
| 28 | 176521 |
| 29 | 179897 |
| 30 | 197257 |
| 31 | 208057 |
| 32 | 215417 |
| 33 | 226697 |
[137,521,1721,3257,4217,5897,6521,7177,9337,10937, 13577,15497,18617,20857,27017,41737,55817,65657, 80777,90121,105097,113017,118457,126857,141497, 163337,173177,176521,179897,197257,208057,215417, 226697] |