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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 1408 |
| 3 | 7744 |
| 4 | 42592 |
| 5 | 240064 |
| 6 | 1353088 |
| 7 | 7626496 |
| 8 | 42683776 |
| 9 | 238891456 |
| 10 | 1337021536 |
| 11 | 7498109248 |
| 12 | 42049915264 |
| 13 | 235818833152 |
| 14 | 1321724569984 |
| 15 | 7408042078528 |
| 16 | 41520819604576 |
| 17 | 232755657125056 |
| 18 | 1304771833495936 |
[256,1408,7744,42592,240064,1353088,7626496, 42683776,238891456,1337021536,7498109248, 42049915264,235818833152,1321724569984, 7408042078528,41520819604576,232755657125056, 1304771833495936] |