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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 73 |
| 4 | 2725 |
| 5 | 242921 |
| 6 | 50068197 |
| 7 | 23441365641 |
| 8 | 24644653272869 |
| 9 | 57655911504114985 |
| 10 | 297771560486880287589 |
| 11 | 3370400630994211122517705 |
| 12 | 83052841013576647141181337509 |
| 13 | 4428866659075152490151174819022697 |
| 14 | 508340576698412171558866359984025695205 |
[1,1,5,73,2725,242921,50068197,23441365641, 24644653272869,57655911504114985, 297771560486880287589,3370400630994211122517705, 83052841013576647141181337509, 4428866659075152490151174819022697, 508340576698412171558866359984025695205] |