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| n | a(n) |
|---|---|
| 1 | 31 |
| 2 | 151 |
| 3 | 241 |
| 4 | 631 |
| 5 | 991 |
| 6 | 1201 |
| 7 | 1951 |
| 8 | 2551 |
| 9 | 4831 |
| 10 | 5281 |
| 11 | 9601 |
| 12 | 11551 |
| 13 | 12241 |
| 14 | 13681 |
| 15 | 14431 |
| 16 | 15991 |
| 17 | 18481 |
| 18 | 24001 |
| 19 | 27031 |
| 20 | 28081 |
| 21 | 30241 |
| 22 | 37201 |
| 23 | 38431 |
| 24 | 48991 |
| 25 | 53281 |
| 26 | 54751 |
| 27 | 57751 |
| 28 | 59281 |
| 29 | 62401 |
| 30 | 67231 |
| 31 | 68881 |
| 32 | 73951 |
| 33 | 77431 |
| 34 | 79201 |
| 35 | 84631 |
[31,151,241,631,991,1201,1951,2551,4831,5281,9601, 11551,12241,13681,14431,15991,18481,24001,27031, 28081,30241,37201,38431,48991,53281,54751,57751, 59281,62401,67231,68881,73951,77431,79201,84631] |