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| n | a(n) |
|---|---|
| 1 | 60 |
| 2 | 12000 |
| 3 | 1758360 |
| 4 | 261136920 |
| 5 | 38768711160 |
| 6 | 5755703361240 |
| 7 | 854506434905400 |
| 8 | 126862210606868760 |
| 9 | 18834288215839119480 |
| 10 | 2796186594116563849560 |
| 11 | 415129012549619965635000 |
| 12 | 61631114827252880297037720 |
[60,12000,1758360,261136920,38768711160, 5755703361240,854506434905400,126862210606868760, 18834288215839119480,2796186594116563849560, 415129012549619965635000, 61631114827252880297037720] |