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| n | a(n) |
|---|---|
| 1 | 802 |
| 2 | 16800 |
| 3 | 412972 |
| 4 | 3791504 |
| 5 | 27309702 |
| 6 | 135637752 |
| 7 | 549183692 |
| 8 | 1882322198 |
| 9 | 5658152588 |
| 10 | 15260105412 |
| 11 | 37735175366 |
| 12 | 86590121782 |
| 13 | 186608489008 |
| 14 | 380873907090 |
| 15 | 742312367226 |
| 16 | 1387762688078 |
| 17 | 2501716768582 |
| 18 | 4364708959260 |
[802,16800,412972,3791504,27309702,135637752, 549183692,1882322198,5658152588,15260105412, 37735175366,86590121782,186608489008,380873907090, 742312367226,1387762688078,2501716768582, 4364708959260] |