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| n | a(n) |
|---|---|
| 1 | 512 |
| 2 | 1188 |
| 3 | 2096 |
| 4 | 6364 |
| 5 | 12208 |
| 6 | 44348 |
| 7 | 87312 |
| 8 | 354132 |
| 9 | 703104 |
| 10 | 3038716 |
| 11 | 6051952 |
| 12 | 27075444 |
| 13 | 53993296 |
| 14 | 245985516 |
| 15 | 490821440 |
| 16 | 2257240564 |
| 17 | 4505154032 |
| 18 | 20819580220 |
| 19 | 41558674736 |
| 20 | 192537441668 |
| 21 | 384356619712 |
| 22 | 1783019060604 |
| 23 | 3559512651120 |
[512,1188,2096,6364,12208,44348,87312,354132, 703104,3038716,6051952,27075444,53993296, 245985516,490821440,2257240564,4505154032, 20819580220,41558674736,192537441668,384356619712, 1783019060604,3559512651120] |