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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 729 |
| 4 | 82161 |
| 5 | 61922961 |
| 6 | 327523604409 |
| 7 | 2968963728429609 |
| 8 | 177453815706399966561 |
| 9 | 71091462160659703468902561 |
| 10 | 51901843800561973225033489716969 |
| 11 | 249256796709038336422469428312871270649 |
| 12 | 7916914883318037268574503647562168355985573201 |
[1,9,729,82161,61922961,327523604409, 2968963728429609,177453815706399966561, 71091462160659703468902561, 51901843800561973225033489716969, 249256796709038336422469428312871270649, 7916914883318037268574503647562168355985573201] |