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| n | a(n) |
|---|---|
| 1 | 150 |
| 2 | 239 |
| 3 | 1436 |
| 4 | 5760 |
| 5 | 25954 |
| 6 | 104404 |
| 7 | 422992 |
| 8 | 1588555 |
| 9 | 5471235 |
| 10 | 17366119 |
| 11 | 50883759 |
| 12 | 138309491 |
| 13 | 350886736 |
| 14 | 834954298 |
| 15 | 1873682709 |
| 16 | 3985258309 |
| 17 | 8070671272 |
| 18 | 15625241986 |
| 19 | 29027866689 |
| 20 | 51922380121 |
| 21 | 89705278727 |
| 22 | 150134603779 |
[150,239,1436,5760,25954,104404,422992,1588555, 5471235,17366119,50883759,138309491,350886736, 834954298,1873682709,3985258309,8070671272, 15625241986,29027866689,51922380121,89705278727, 150134603779] |