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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 125 |
| 4 | 17084 |
| 5 | 8608738 |
| 6 | 24177895648 |
| 7 | 304265433695569 |
| 8 | 19162399246164949616 |
| 9 | 5720357296116644040788320 |
| 10 | 8308397301115322562870135405329 |
| 11 | 57991968922890673398646650823295660128 |
[1,7,125,17084,8608738,24177895648, 304265433695569,19162399246164949616, 5720357296116644040788320, 8308397301115322562870135405329, 57991968922890673398646650823295660128] |