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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 54 |
| 4 | 1753 |
| 5 | 189341 |
| 6 | 46935710 |
| 7 | 20494522535 |
| 8 | 14041749098602 |
| 9 | 14155266802426836 |
| 10 | 20061744131278672638 |
| 11 | 38587417589460488631726 |
| 12 | 97900485588988429336271590 |
| 13 | 320012505326477694925887757141 |
| 14 | 1321269556386383657509085883067690 |
| 15 | 6775074159053505093089897813890701467 |
[1,5,54,1753,189341,46935710,20494522535, 14041749098602,14155266802426836, 20061744131278672638,38587417589460488631726, 97900485588988429336271590, 320012505326477694925887757141, 1321269556386383657509085883067690, 6775074159053505093089897813890701467] |