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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 82 |
| 4 | 724 |
| 5 | 6504 |
| 6 | 59992 |
| 7 | 559028 |
| 8 | 5252900 |
| 9 | 49700882 |
| 10 | 472873888 |
| 11 | 4519281222 |
| 12 | 43353372676 |
| 13 | 417214414596 |
| 14 | 4026070558436 |
| 15 | 38943205468034 |
| 16 | 377469980604452 |
| 17 | 3665456335373858 |
| 18 | 35651726951195532 |
| 19 | 347268836196275908 |
[1,10,82,724,6504,59992,559028,5252900,49700882, 472873888,4519281222,43353372676,417214414596, 4026070558436,38943205468034,377469980604452, 3665456335373858,35651726951195532, 347268836196275908] |