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| n | a(n) |
|---|---|
| 1 | 4797 |
| 2 | 135138 |
| 3 | 2268072 |
| 4 | 25678020 |
| 5 | 224320572 |
| 6 | 1649999532 |
| 7 | 10785747852 |
| 8 | 64824941388 |
| 9 | 366263505612 |
| 10 | 1974734612940 |
| 11 | 10266404558796 |
| 12 | 51852359848908 |
| 13 | 255825084304332 |
| 14 | 1238033348475852 |
| 15 | 5895322649598924 |
| 16 | 27690990109023180 |
| 17 | 128550270229863372 |
| 18 | 590735658025999308 |
[4797,135138,2268072,25678020,224320572, 1649999532,10785747852,64824941388,366263505612, 1974734612940,10266404558796,51852359848908, 255825084304332,1238033348475852,5895322649598924, 27690990109023180,128550270229863372, 590735658025999308] |