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| n | a(n) |
|---|---|
| 69 | 1 |
| 70 | 70 |
| 71 | 2485 |
| 72 | 59640 |
| 73 | 1088430 |
| 74 | 16108764 |
| 75 | 201359550 |
| 76 | 2186189400 |
| 77 | 21042072975 |
| 78 | 182364632450 |
| 79 | 1440680596355 |
| 80 | 10477677064400 |
| 81 | 70724320184700 |
| 82 | 446107250395800 |
| 83 | 2644778698775100 |
| 84 | 14810760713140560 |
[1,70,2485,59640,1088430,16108764,201359550, 2186189400,21042072975,182364632450,1440680596355, 10477677064400,70724320184700,446107250395800, 2644778698775100,14810760713140560] |