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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 84 |
| 4 | 1011 |
| 5 | 14884 |
| 6 | 518049 |
| 7 | 30551417 |
| 8 | 3146508594 |
| 9 | 552879942836 |
| 10 | 167170218443304 |
| 11 | 86562563964524453 |
[1,9,84,1011,14884,518049,30551417,3146508594, 552879942836,167170218443304,86562563964524453] |