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| n | a(n) |
|---|---|
| 1 | 28 |
| 2 | 9838 |
| 3 | 1892859 |
| 4 | 403317044 |
| 5 | 84799061141 |
| 6 | 17838051289367 |
| 7 | 3753835631741568 |
| 8 | 789821887272883642 |
| 9 | 166189333434443018741 |
| 10 | 34968169848205865653334 |
| 11 | 7357721396433443050132543 |
| 12 | 1548152408282663670986074421 |
[28,9838,1892859,403317044,84799061141, 17838051289367,3753835631741568, 789821887272883642,166189333434443018741, 34968169848205865653334,7357721396433443050132543, 1548152408282663670986074421] |