| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 11 |
| 3 | 58 |
| 4 | 206 |
| 5 | 571 |
| 6 | 1337 |
| 7 | 2772 |
| 8 | 5244 |
| 9 | 9237 |
| 10 | 15367 |
| 11 | 24398 |
| 12 | 37258 |
| 13 | 55055 |
| 14 | 79093 |
| 15 | 110888 |
| 16 | 152184 |
| 17 | 204969 |
| 18 | 271491 |
| 19 | 354274 |
| 20 | 456134 |
| 21 | 580195 |
| 22 | 729905 |
| 23 | 909052 |
| 24 | 1121780 |
| 25 | 1372605 |
| 26 | 1666431 |
| 27 | 2008566 |
| 28 | 2404738 |
| 29 | 2861111 |
| 30 | 3384301 |
| 31 | 3981392 |
| 32 | 4659952 |
| 33 | 5428049 |
| 34 | 6294267 |
[0,1,11,58,206,571,1337,2772,5244,9237,15367, 24398,37258,55055,79093,110888,152184,204969, 271491,354274,456134,580195,729905,909052,1121780, 1372605,1666431,2008566,2404738,2861111,3384301, 3981392,4659952,5428049,6294267] |