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| n | a(n) |
|---|---|
| 1 | 204 |
| 2 | 2504 |
| 3 | 30536 |
| 4 | 371976 |
| 5 | 4530424 |
| 6 | 55175944 |
| 7 | 671983416 |
| 8 | 8184025736 |
| 9 | 99672501944 |
| 10 | 1213902270984 |
| 11 | 14784004509496 |
| 12 | 180053035925896 |
| 13 | 2192849421966264 |
| 14 | 26706512126351624 |
| 15 | 325256163423006776 |
| 16 | 3961265003235768456 |
[204,2504,30536,371976,4530424,55175944,671983416, 8184025736,99672501944,1213902270984, 14784004509496,180053035925896,2192849421966264, 26706512126351624,325256163423006776, 3961265003235768456] |