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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 33 |
| 4 | 1083 |
| 5 | 602 |
| 6 | 2522 |
| 7 | 211673 |
| 8 | 6612470 |
| 9 | 3405122 |
| 10 | 49799889 |
| 11 | 202536181 |
| 12 | 3195380868 |
| 13 | 5208143601 |
| 14 | 85843948321 |
| 15 | 97524222465 |
[1,2,33,1083,602,2522,211673,6612470,3405122, 49799889,202536181,3195380868,5208143601, 85843948321,97524222465] |