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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 16 |
| 3 | 18 |
| 4 | 28 |
| 5 | 42 |
| 6 | 118 |
| 7 | 172 |
| 8 | 948 |
| 9 | 1608 |
| 10 | 5578 |
| 11 | 19678 |
| 12 | 34146 |
| 13 | 43492 |
| 14 | 97798 |
[0,16,18,28,42,118,172,948,1608,5578,19678,34146, 43492,97798] |