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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 18 |
| 3 | 39 |
| 4 | 72 |
| 5 | 120 |
| 6 | 185 |
| 7 | 270 |
| 8 | 378 |
| 9 | 511 |
| 10 | 672 |
| 11 | 864 |
| 12 | 1089 |
| 13 | 1350 |
| 14 | 1650 |
| 15 | 1991 |
| 16 | 2376 |
| 17 | 2808 |
| 18 | 3289 |
| 19 | 3822 |
| 20 | 4410 |
| 21 | 5055 |
| 22 | 5760 |
| 23 | 6528 |
| 24 | 7361 |
| 25 | 8262 |
| 26 | 9234 |
| 27 | 10279 |
| 28 | 11400 |
| 29 | 12600 |
| 30 | 13881 |
| 31 | 15246 |
| 32 | 16698 |
| 33 | 18239 |
| 34 | 19872 |
| 35 | 21600 |
| 36 | 23425 |
| 37 | 25350 |
| 38 | 27378 |
| 39 | 29511 |
| 40 | 31752 |
| 41 | 34104 |
| 42 | 36569 |
| 43 | 39150 |
| 44 | 41850 |
| 45 | 44671 |
| 46 | 47616 |
| 47 | 50688 |
| 48 | 53889 |
| 49 | 57222 |
[1,6,18,39,72,120,185,270,378,511,672,864,1089, 1350,1650,1991,2376,2808,3289,3822,4410,5055,5760, 6528,7361,8262,9234,10279,11400,12600,13881,15246, 16698,18239,19872,21600,23425,25350,27378,29511, 31752,34104,36569,39150,41850,44671,47616,50688, 53889,57222] |