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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 24 |
| 5 | 28 |
| 6 | 30 |
| 7 | 32 |
| 8 | 64 |
| 9 | 88 |
| 10 | 128 |
| 11 | 132 |
| 12 | 134 |
| 13 | 268 |
| 14 | 416 |
| 15 | 1920 |
| 16 | 3712 |
| 17 | 7424 |
[1,2,4,24,28,30,32,64,88,128,132,134,268,416,1920, 3712,7424] |