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| n | a(n) |
|---|---|
| 1 | 55 |
| 2 | 5734 |
| 3 | 1339532 |
| 4 | 290382196 |
| 5 | 62871566958 |
| 6 | 13609071705352 |
| 7 | 2945758167995030 |
| 8 | 637625980627797115 |
| 9 | 138017736261370390211 |
| 10 | 29874716092788477314081 |
| 11 | 6466550462524073695152433 |
| 12 | 1399721246883859812052644377 |
[55,5734,1339532,290382196,62871566958, 13609071705352,2945758167995030, 637625980627797115,138017736261370390211, 29874716092788477314081,6466550462524073695152433, 1399721246883859812052644377] |