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| n | a(n) |
|---|---|
| 7 | 4683 |
| 8 | 81078 |
| 9 | 1148016 |
| 10 | 15821592 |
| 11 | 223324968 |
| 12 | 3291487548 |
| 13 | 51390688648 |
| 14 | 853336081124 |
| 15 | 14968971308424 |
| 16 | 276240216296568 |
| 17 | 5347594452033174 |
| 18 | 108358364062922106 |
| 19 | 2294379672012591648 |
| 20 | 50691426196004660946 |
| 21 | 1167051922550186976006 |
| 22 | 27960460507841919880920 |
[4683,81078,1148016,15821592,223324968,3291487548, 51390688648,853336081124,14968971308424, 276240216296568,5347594452033174, 108358364062922106,2294379672012591648, 50691426196004660946,1167051922550186976006, 27960460507841919880920] |