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| n | a(n) |
|---|---|
| 3 | 78 |
| 4 | 190 |
| 5 | 504 |
| 6 | 1562 |
| 7 | 5142 |
| 8 | 17236 |
| 9 | 58126 |
| 10 | 196432 |
| 11 | 664294 |
| 12 | 2247036 |
| 13 | 7601390 |
| 14 | 25715016 |
| 15 | 86992950 |
| 16 | 294294692 |
| 17 | 995591438 |
| 18 | 3368061312 |
| 19 | 11394069382 |
| 20 | 38545860172 |
| 21 | 130399710446 |
| 22 | 441139060088 |
| 23 | 1492362750038 |
| 24 | 5048627019764 |
| 25 | 17079382868494 |
| 26 | 57779138374320 |
| 27 | 195465425010214 |
[78,190,504,1562,5142,17236,58126,196432,664294, 2247036,7601390,25715016,86992950,294294692, 995591438,3368061312,11394069382,38545860172, 130399710446,441139060088,1492362750038, 5048627019764,17079382868494,57779138374320, 195465425010214] |