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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 558 |
| 3 | 558 |
| 4 | 3888 |
| 5 | 6804 |
| 6 | 3888 |
| 7 | 27000 |
| 8 | 85464 |
| 9 | 85280 |
| 10 | 27000 |
| 11 | 187704 |
| 12 | 1069400 |
| 13 | 1962374 |
| 14 | 1066300 |
| 15 | 187704 |
| 16 | 1304424 |
| 17 | 13402934 |
| 18 | 44878810 |
| 19 | 44943722 |
| 20 | 13347930 |
| 21 | 1304424 |
| 22 | 9066168 |
| 23 | 167888152 |
| 24 | 1028601406 |
| 25 | 1878758740 |
| 26 | 1029772234 |
| 27 | 166986430 |
[81,558,558,3888,6804,3888,27000,85464,85280, 27000,187704,1069400,1962374,1066300,187704, 1304424,13402934,44878810,44943722,13347930, 1304424,9066168,167888152,1028601406,1878758740, 1029772234,166986430] |