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| n | a(n) |
|---|---|
| 0 | 30 |
| 1 | 97 |
| 2 | 381 |
| 3 | 1711 |
| 4 | 8547 |
| 5 | 46677 |
| 6 | 275375 |
| 7 | 1739545 |
| 8 | 11685834 |
| 9 | 83025806 |
| 10 | 621066569 |
| 11 | 4872976895 |
| 12 | 39974624783 |
| 13 | 341902273528 |
| 14 | 3041542225849 |
| 15 | 28082214612126 |
| 16 | 268589416134352 |
| 17 | 2656605574961663 |
| 18 | 27131852677678804 |
| 19 | 285720796755145126 |
| 20 | 3098587829401297824 |
[30,97,381,1711,8547,46677,275375,1739545, 11685834,83025806,621066569,4872976895, 39974624783,341902273528,3041542225849, 28082214612126,268589416134352,2656605574961663, 27131852677678804,285720796755145126, 3098587829401297824] |