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| n | a(n) |
|---|---|
| 1 | 62480 |
| 2 | 1432640 |
| 3 | 7660880 |
| 4 | 27931280 |
| 5 | 39685376 |
| 6 | 116636864 |
| 7 | 179299575 |
| 8 | 318523136 |
| 9 | 4217802560 |
| 10 | 4494828240 |
| 11 | 4952759175 |
| 12 | 6067699000 |
| 13 | 7775676090 |
| 14 | 12285798525 |
| 15 | 15069863936 |
| 16 | 17358731325 |
| 17 | 20160203840 |
| 18 | 25845386480 |
| 19 | 30293400832 |
[62480,1432640,7660880,27931280,39685376, 116636864,179299575,318523136,4217802560, 4494828240,4952759175,6067699000,7775676090, 12285798525,15069863936,17358731325,20160203840, 25845386480,30293400832] |