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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 8 |
| 2 | 20 |
| 3 | 36 |
| 4 | 64 |
| 5 | 80 |
| 6 | 112 |
| 7 | 140 |
| 8 | 172 |
| 9 | 216 |
| 10 | 244 |
| 11 | 280 |
| 12 | 324 |
| 13 | 364 |
| 14 | 408 |
[0,8,20,36,64,80,112,140,172,216,244,280,324,364, 408] |