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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 5 |
| 5 | 311 |
| 6 | 434 |
| 7 | 42799 |
| 8 | 90075 |
| 9 | 12345679 |
| 10 | 34867844 |
| 11 | 6140565047 |
| 12 | 1695421 |
| 13 | 4696537119847 |
| 14 | 20088655029078 |
| 15 | 5124095576030431 |
| 16 | 25657845139503479 |
| 17 | 7563707819165039903 |
| 18 | 43404581642184336392 |
| 19 | 14523213296398891966759 |
[1,2,7,5,311,434,42799,90075,12345679,34867844, 6140565047,1695421,4696537119847,20088655029078, 5124095576030431,25657845139503479, 7563707819165039903,43404581642184336392, 14523213296398891966759] |