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| n | a(n) |
|---|---|
| 1 | 487 |
| 2 | 721 |
| 3 | 42375 |
| 4 | 110125 |
| 5 | 198275 |
| 6 | 1249827 |
| 7 | 2672125 |
| 8 | 3668325 |
| 9 | 4205925 |
| 10 | 4689974 |
| 11 | 7446484 |
| 12 | 16999709 |
| 13 | 18700025 |
| 14 | 59300075 |
| 15 | 66534325 |
| 16 | 84998545 |
| 17 | 139372012 |
| 18 | 148421502 |
| 19 | 291256461 |
| 20 | 590939886 |
| 21 | 720025325 |
| 22 | 781462056 |
| 23 | 976100002 |
| 24 | 998014875 |
[487,721,42375,110125,198275,1249827,2672125, 3668325,4205925,4689974,7446484,16999709,18700025, 59300075,66534325,84998545,139372012,148421502, 291256461,590939886,720025325,781462056,976100002, 998014875] |