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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 27 |
| 2 | 466 |
| 3 | 6558 |
| 4 | 82075 |
| 5 | 952329 |
| 6 | 10485532 |
| 7 | 111125916 |
| 8 | 1144265749 |
| 9 | 11522055831 |
| 10 | 113982102598 |
| 11 | 1111567913274 |
| 12 | 10714164992623 |
| 13 | 102277469691333 |
| 14 | 968483992074064 |
| 15 | 9108558269363832 |
| 16 | 85172800746064297 |
[1,27,466,6558,82075,952329,10485532,111125916, 1144265749,11522055831,113982102598,1111567913274, 10714164992623,102277469691333,968483992074064, 9108558269363832,85172800746064297] |