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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 50 |
| 4 | 444 |
| 5 | 4095 |
| 6 | 38532 |
| 7 | 367322 |
| 8 | 3533112 |
| 9 | 34204975 |
| 10 | 332775412 |
| 11 | 3249900751 |
| 12 | 31835316002 |
| 13 | 312622943953 |
| 14 | 3076226193598 |
| 15 | 30321954730777 |
| 16 | 299312070501364 |
| 17 | 2958208307116218 |
| 18 | 29268288065205160 |
| 19 | 289847587059195157 |
[1,6,50,444,4095,38532,367322,3533112,34204975, 332775412,3249900751,31835316002,312622943953, 3076226193598,30321954730777,299312070501364, 2958208307116218,29268288065205160, 289847587059195157] |