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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 32 |
| 3 | 78 |
| 4 | 196 |
| 5 | 428 |
| 6 | 916 |
| 7 | 1858 |
| 8 | 3678 |
| 9 | 7096 |
| 10 | 13458 |
| 11 | 25150 |
| 12 | 46466 |
| 13 | 85028 |
| 14 | 154356 |
| 15 | 278298 |
| 16 | 498792 |
| 17 | 889320 |
| 18 | 1578248 |
| 19 | 2789166 |
| 20 | 4910498 |
| 21 | 8615348 |
| 22 | 15067462 |
| 23 | 26274538 |
| 24 | 45693286 |
[8,32,78,196,428,916,1858,3678,7096,13458,25150, 46466,85028,154356,278298,498792,889320,1578248, 2789166,4910498,8615348,15067462,26274538, 45693286] |