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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 112 |
| 4 | 6748 |
| 5 | 1567168 |
| 6 | 1434380032 |
| 7 | 5313181564672 |
| 8 | 80838493938673408 |
| 9 | 5049534755835943518208 |
| 10 | 1285872353198490183576174592 |
| 11 | 1325820676430550921213458275827712 |
| 12 | 5508138956812250711370615442510783971328 |
| 13 | 91922764576982599075727039533520680008845099008 |
[1,7,112,6748,1567168,1434380032,5313181564672, 80838493938673408,5049534755835943518208, 1285872353198490183576174592, 1325820676430550921213458275827712, 5508138956812250711370615442510783971328, 91922764576982599075727039533520680008845099008] |