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| n | a(n) |
|---|---|
| 9 | 23136128 |
| 10 | 873274112 |
| 11 | 43316046592 |
| 12 | 2700561836672 |
| 13 | 205352644205568 |
| 14 | 18629724957708800 |
| 15 | 1982309731660474368 |
| 16 | 244043425473888612352 |
| 17 | 34372758116984213536768 |
| 18 | 5486719044572824902107136 |
| 19 | 984593144718697864983347200 |
| 20 | 197245981020715237398610116608 |
[23136128,873274112,43316046592,2700561836672, 205352644205568,18629724957708800, 1982309731660474368,244043425473888612352, 34372758116984213536768,5486719044572824902107136, 984593144718697864983347200, 197245981020715237398610116608] |