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| n | a(n) |
|---|---|
| 1 | 404672 |
| 2 | 1662439 |
| 3 | 8115610 |
| 4 | 51232136 |
| 5 | 112212755 |
| 6 | 290329276 |
| 7 | 758297009 |
| 8 | 1538743336 |
| 9 | 3144214353 |
| 10 | 6262873752 |
| 11 | 11542342124 |
| 12 | 21147758655 |
| 13 | 38139458456 |
| 14 | 66602951730 |
| 15 | 116033750607 |
| 16 | 199967861523 |
| 17 | 341342073822 |
| 18 | 584866227788 |
[404672,1662439,8115610,51232136,112212755, 290329276,758297009,1538743336,3144214353, 6262873752,11542342124,21147758655,38139458456, 66602951730,116033750607,199967861523, 341342073822,584866227788] |