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| n | a(n) |
|---|---|
| 1 | 130 |
| 2 | 4580 |
| 3 | 58814 |
| 4 | 506513 |
| 5 | 3509115 |
| 6 | 21167501 |
| 7 | 114643788 |
| 8 | 564290412 |
| 9 | 2542634801 |
| 10 | 10557558941 |
| 11 | 40668731568 |
| 12 | 146309729951 |
| 13 | 494716846368 |
| 14 | 1581405249972 |
| 15 | 4804031345110 |
| 16 | 13933344725622 |
| 17 | 38739584907398 |
| 18 | 103620108265460 |
[130,4580,58814,506513,3509115,21167501,114643788, 564290412,2542634801,10557558941,40668731568, 146309729951,494716846368,1581405249972, 4804031345110,13933344725622,38739584907398, 103620108265460] |