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| n | a(n) |
|---|---|
| 1 | 55 |
| 2 | 110 |
| 3 | 165 |
| 4 | 220 |
| 5 | 275 |
| 6 | 330 |
| 7 | 385 |
| 8 | 440 |
| 9 | 495 |
| 10 | 530 |
| 11 | 47270 |
| 12 | 119710 |
| 13 | 685385 |
| 14 | 21526000 |
| 15 | 6055017240 |
[55,110,165,220,275,330,385,440,495,530,47270, 119710,685385,21526000,6055017240] |