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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 30 |
| 3 | 138 |
| 4 | 210 |
| 5 | 2280 |
| 6 | 4676 |
| 7 | 5970 |
| 8 | 6972 |
| 9 | 8372 |
| 10 | 10290 |
| 11 | 12012 |
| 12 | 12306 |
| 13 | 20370 |
| 14 | 22386 |
| 15 | 105420 |
| 16 | 116844 |
| 17 | 118524 |
| 18 | 153480 |
| 19 | 189420 |
| 20 | 195860 |
| 21 | 204204 |
| 22 | 218430 |
| 23 | 289560 |
| 24 | 293880 |
| 25 | 362180 |
| 26 | 369740 |
| 27 | 408510 |
| 28 | 414990 |
| 29 | 494760 |
| 30 | 525420 |
| 31 | 629640 |
| 32 | 933660 |
| 33 | 952770 |
| 34 | 1529010 |
| 35 | 1564332 |
| 36 | 1647810 |
[1,30,138,210,2280,4676,5970,6972,8372,10290, 12012,12306,20370,22386,105420,116844,118524, 153480,189420,195860,204204,218430,289560,293880, 362180,369740,408510,414990,494760,525420,629640, 933660,952770,1529010,1564332,1647810] |