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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 99 |
| 3 | 3692 |
| 4 | 94280 |
| 5 | 2075271 |
| 6 | 42972329 |
| 7 | 866126030 |
| 8 | 17234589848 |
| 9 | 340759985173 |
| 10 | 6715679348165 |
| 11 | 132133640829902 |
| 12 | 2597584688864178 |
| 13 | 51043234543210529 |
| 14 | 1002791241847545847 |
| 15 | 19698523732748736840 |
| 16 | 386929326073777902750 |
| 17 | 7600054817584231361621 |
| 18 | 149277792786859197467919 |
[1,99,3692,94280,2075271,42972329,866126030, 17234589848,340759985173,6715679348165, 132133640829902,2597584688864178, 51043234543210529,1002791241847545847, 19698523732748736840,386929326073777902750, 7600054817584231361621,149277792786859197467919] |