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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 162 |
| 3 | 4070 |
| 4 | 100306 |
| 5 | 2272190 |
| 6 | 48481917 |
| 7 | 990070284 |
| 8 | 19550495121 |
| 9 | 375972018492 |
| 10 | 7077631558153 |
| 11 | 130917736928836 |
| 12 | 2386330581933385 |
| 13 | 42958320934899628 |
| 14 | 765084427823374321 |
| 15 | 13499826227679683140 |
| 16 | 236266604028642547153 |
[6,162,4070,100306,2272190,48481917,990070284, 19550495121,375972018492,7077631558153, 130917736928836,2386330581933385, 42958320934899628,765084427823374321, 13499826227679683140,236266604028642547153] |