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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 76 |
| 3 | 12644 |
| 4 | 3305017 |
| 5 | 1245131903 |
| 6 | 654277037674 |
| 7 | 467728049807348 |
| 8 | 443694809361207824 |
| 9 | 544852927413901502514 |
| 10 | 846359710104516310431744 |
| 11 | 1629392161877794034658847500 |
| 12 | 3819592516111353522143561652540 |
| 13 | 10738740219595085951726635839975852 |
[1,1,76,12644,3305017,1245131903,654277037674, 467728049807348,443694809361207824, 544852927413901502514,846359710104516310431744, 1629392161877794034658847500, 3819592516111353522143561652540, 10738740219595085951726635839975852] |