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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 29 |
| 2 | 464 |
| 3 | 5365 |
| 4 | 49880 |
| 5 | 394632 |
| 6 | 2750969 |
| 7 | 17296732 |
| 8 | 99742368 |
| 9 | 534126988 |
| 10 | 2681856693 |
| 11 | 12722233068 |
| 12 | 57373155952 |
| 13 | 247218913828 |
| 14 | 1022189562610 |
| 15 | 4070289420139 |
| 16 | 15656921120982 |
| 17 | 58336024110584 |
| 18 | 211023516790156 |
| 19 | 742643172981206 |
| 20 | 2547265600634862 |
| 21 | 8529351700138885 |
[1,29,464,5365,49880,394632,2750969,17296732, 99742368,534126988,2681856693,12722233068, 57373155952,247218913828,1022189562610, 4070289420139,15656921120982,58336024110584, 211023516790156,742643172981206,2547265600634862, 8529351700138885] |