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| n | a(n) |
|---|---|
| 1 | 54 |
| 2 | 2916 |
| 3 | 89744 |
| 4 | 2613530 |
| 5 | 72609144 |
| 6 | 2002277608 |
| 7 | 55080396536 |
| 8 | 1515192856324 |
| 9 | 41677443278252 |
| 10 | 1146393385863412 |
| 11 | 31532963467317340 |
| 12 | 867353027986156300 |
| 13 | 23857611484854924172 |
| 14 | 656232939488766364764 |
| 15 | 18050493852378599289948 |
[54,2916,89744,2613530,72609144,2002277608, 55080396536,1515192856324,41677443278252, 1146393385863412,31532963467317340, 867353027986156300,23857611484854924172, 656232939488766364764,18050493852378599289948] |