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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 19 |
| 3 | 120 |
| 4 | 442 |
| 5 | 1332 |
| 6 | 2863 |
| 7 | 5871 |
| 8 | 10171 |
| 9 | 17358 |
| 10 | 26518 |
| 11 | 40590 |
| 12 | 57757 |
| 13 | 81735 |
| 14 | 110209 |
| 15 | 148158 |
| 16 | 192184 |
| 17 | 248772 |
| 18 | 313105 |
| 19 | 393429 |
| 20 | 483283 |
| 21 | 593490 |
| 22 | 715528 |
| 23 | 861660 |
| 24 | 1022281 |
| 25 | 1211811 |
| 26 | 1418515 |
| 27 | 1659108 |
| 28 | 1919842 |
| 29 | 2220204 |
| 30 | 2543527 |
| 31 | 2912751 |
| 32 | 3308305 |
| 33 | 3755922 |
| 34 | 4233730 |
| 35 | 4770150 |
| 36 | 5340529 |
| 37 | 5977071 |
[3,19,120,442,1332,2863,5871,10171,17358,26518, 40590,57757,81735,110209,148158,192184,248772, 313105,393429,483283,593490,715528,861660,1022281, 1211811,1418515,1659108,1919842,2220204,2543527, 2912751,3308305,3755922,4233730,4770150,5340529, 5977071] |