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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 1155 |
| 3 | 127570 |
| 4 | 17526450 |
| 5 | 2241330570 |
| 6 | 295044602325 |
| 7 | 38418831900875 |
| 8 | 5024252800116630 |
| 9 | 655951718326130130 |
| 10 | 85695581922306489845 |
| 11 | 11192649881286988768850 |
| 12 | 1462013677990229903804335 |
[6,1155,127570,17526450,2241330570,295044602325, 38418831900875,5024252800116630, 655951718326130130,85695581922306489845, 11192649881286988768850,1462013677990229903804335] |