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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 131 |
| 3 | 1429 |
| 4 | 15588 |
| 5 | 170039 |
| 6 | 1854841 |
| 7 | 20233212 |
| 8 | 220710491 |
| 9 | 2407582189 |
| 10 | 26262693588 |
| 11 | 286482047279 |
| 12 | 3125039826481 |
| 13 | 34088956044012 |
| 14 | 371853476657651 |
| 15 | 4056299287190149 |
| 16 | 44247438682433988 |
| 17 | 482665526219583719 |
| 18 | 5265073349732986921 |
| 19 | 57433141320843272412 |
[1,12,131,1429,15588,170039,1854841,20233212, 220710491,2407582189,26262693588,286482047279, 3125039826481,34088956044012,371853476657651, 4056299287190149,44247438682433988, 482665526219583719,5265073349732986921, 57433141320843272412] |