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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 489 |
| 3 | 1545 |
| 4 | 3249 |
| 5 | 5601 |
| 6 | 8601 |
| 7 | 12249 |
| 8 | 16545 |
| 9 | 21489 |
| 10 | 27081 |
| 11 | 33321 |
| 12 | 40209 |
| 13 | 47745 |
| 14 | 55929 |
| 15 | 64761 |
| 16 | 74241 |
| 17 | 84369 |
| 18 | 95145 |
| 19 | 106569 |
| 20 | 118641 |
| 21 | 131361 |
| 22 | 144729 |
| 23 | 158745 |
| 24 | 173409 |
| 25 | 188721 |
| 26 | 204681 |
| 27 | 221289 |
| 28 | 238545 |
| 29 | 256449 |
| 30 | 275001 |
| 31 | 294201 |
| 32 | 314049 |
| 33 | 334545 |
| 34 | 355689 |
| 35 | 377481 |
| 36 | 399921 |
| 37 | 423009 |
| 38 | 446745 |
| 39 | 471129 |
| 40 | 496161 |
[81,489,1545,3249,5601,8601,12249,16545,21489, 27081,33321,40209,47745,55929,64761,74241,84369, 95145,106569,118641,131361,144729,158745,173409, 188721,204681,221289,238545,256449,275001,294201, 314049,334545,355689,377481,399921,423009,446745, 471129,496161] |