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| n | a(n) |
|---|---|
| 0 | 1026 |
| 1 | 19458 |
| 2 | 174762 |
| 3 | 1170810 |
| 4 | 6751386 |
| 5 | 35653338 |
| 6 | 177967962 |
| 7 | 854830170 |
| 8 | 3994246746 |
| 9 | 18282889818 |
| 10 | 82367580762 |
| 11 | 366439242330 |
| 12 | 1613682326106 |
| 13 | 7046530103898 |
| 14 | 30553522371162 |
| 15 | 131684094835290 |
| 16 | 564617195813466 |
| 17 | 2409993639295578 |
| 18 | 10246077161667162 |
| 19 | 43408725425257050 |
| 20 | 183332581536692826 |
[1026,19458,174762,1170810,6751386,35653338, 177967962,854830170,3994246746,18282889818, 82367580762,366439242330,1613682326106, 7046530103898,30553522371162,131684094835290, 564617195813466,2409993639295578, 10246077161667162,43408725425257050, 183332581536692826] |