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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 17 |
| 3 | 71 |
| 4 | 161 |
| 5 | 449 |
| 6 | 881 |
| 7 | 1799 |
| 8 | 2591 |
| 9 | 5201 |
| 10 | 5831 |
| 11 | 9521 |
| 12 | 11249 |
| 13 | 16199 |
| 14 | 18431 |
| 15 | 19601 |
| 16 | 25991 |
| 17 | 28799 |
| 18 | 36449 |
| 19 | 39761 |
| 20 | 48671 |
| 21 | 60551 |
| 22 | 88199 |
| 23 | 93311 |
| 24 | 106721 |
| 25 | 136241 |
| 26 | 162449 |
| 27 | 179999 |
| 28 | 190961 |
| 29 | 206081 |
| 30 | 217799 |
| 31 | 328049 |
| 32 | 337841 |
| 33 | 342791 |
| 34 | 368081 |
| 35 | 388961 |
| 36 | 520199 |
| 37 | 532511 |
| 38 | 551249 |
| 39 | 563921 |
[7,17,71,161,449,881,1799,2591,5201,5831,9521, 11249,16199,18431,19601,25991,28799,36449,39761, 48671,60551,88199,93311,106721,136241,162449, 179999,190961,206081,217799,328049,337841,342791, 368081,388961,520199,532511,551249,563921] |