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| n | a(n) |
|---|---|
| 1 | 18213931681 |
| 2 | 5044241991721 |
| 3 | 6093734165401 |
| 4 | 6278567569849 |
| 5 | 17919144076201 |
| 6 | 52536446729209 |
| 7 | 56470430531761 |
| 8 | 72659547739249 |
| 9 | 107737943736721 |
| 10 | 123343213788001 |
| 11 | 136925780937841 |
| 12 | 170306127919321 |
| 13 | 211292941174561 |
| 14 | 296693149397089 |
| 15 | 321058916825689 |
[18213931681,5044241991721,6093734165401, 6278567569849,17919144076201,52536446729209, 56470430531761,72659547739249,107737943736721, 123343213788001,136925780937841,170306127919321, 211292941174561,296693149397089,321058916825689] |