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| n | a(n) |
|---|---|
| 0 | 279936 |
| 1 | 105413504 |
| 2 | 2494357888 |
| 3 | 21870000000 |
| 4 | 114415582592 |
| 5 | 435817657216 |
| 6 | 1338925209984 |
| 7 | 3521614606208 |
| 8 | 8235430000000 |
| 9 | 17565568854912 |
| 10 | 34792782221696 |
| 11 | 64847759419264 |
| 12 | 114868566764928 |
| 13 | 194871710000000 |
| 14 | 318547390056832 |
| 15 | 504189521813376 |
| 16 | 775771085481344 |
| 17 | 1164175380274048 |
[279936,105413504,2494357888,21870000000, 114415582592,435817657216,1338925209984, 3521614606208,8235430000000,17565568854912, 34792782221696,64847759419264,114868566764928, 194871710000000,318547390056832,504189521813376, 775771085481344,1164175380274048] |