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A051846 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 57 |
| 4 | 586 |
| 5 | 7465 |
| 6 | 114381 |
| 7 | 2054353 |
| 8 | 42374116 |
| 9 | 987654321 |
| 10 | 25678050355 |
| 11 | 736867805641 |
| 12 | 23136292864686 |
| 13 | 789018236134297 |
| 14 | 29043982525261081 |
| 15 | 1147797409030816545 |
| 16 | 48471109094902544776 |
| 17 | 2178347851919531492065 |
| 18 | 103805969587115219182431 |
[1,7,57,586,7465,114381,2054353,42374116, 987654321,25678050355,736867805641,23136292864686, 789018236134297,29043982525261081, 1147797409030816545,48471109094902544776, 2178347851919531492065,103805969587115219182431] |