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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 81 |
| 3 | 261 |
| 4 | 603 |
| 5 | 1161 |
| 6 | 1989 |
| 7 | 3141 |
| 8 | 4671 |
| 9 | 6633 |
| 10 | 9081 |
| 11 | 12069 |
| 12 | 15651 |
| 13 | 19881 |
| 14 | 24813 |
| 15 | 30501 |
| 16 | 36999 |
| 17 | 44361 |
| 18 | 52641 |
| 19 | 61893 |
| 20 | 72171 |
| 21 | 83529 |
| 22 | 96021 |
| 23 | 109701 |
| 24 | 124623 |
| 25 | 140841 |
| 26 | 158409 |
| 27 | 177381 |
| 28 | 197811 |
| 29 | 219753 |
| 30 | 243261 |
| 31 | 268389 |
| 32 | 295191 |
| 33 | 323721 |
| 34 | 354033 |
| 35 | 386181 |
[9,81,261,603,1161,1989,3141,4671,6633,9081,12069, 15651,19881,24813,30501,36999,44361,52641,61893, 72171,83529,96021,109701,124623,140841,158409, 177381,197811,219753,243261,268389,295191,323721, 354033,386181] |