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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 16 |
| 4 | 18 |
| 5 | 32 |
| 6 | 38 |
| 7 | 168 |
| 8 | 452 |
| 9 | 610 |
| 10 | 882 |
| 11 | 1472 |
| 12 | 6510 |
| 13 | 9646 |
| 14 | 21592 |
| 15 | 39990 |
| 16 | 40156 |
[0,2,16,18,32,38,168,452,610,882,1472,6510,9646, 21592,39990,40156] |