| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 1063 |
| 3 | 1844 |
| 4 | 3996 |
| 5 | 8031 |
| 6 | 15792 |
| 7 | 31152 |
| 8 | 62349 |
| 9 | 126893 |
| 10 | 261994 |
| 11 | 546766 |
| 12 | 1149413 |
| 13 | 2427843 |
| 14 | 5143554 |
| 15 | 10917253 |
| 16 | 23198800 |
| 17 | 49332659 |
| 18 | 104956473 |
| 19 | 223368832 |
| 20 | 475481120 |
| 21 | 1012314087 |
| 22 | 2155517167 |
| 23 | 4590184433 |
| 24 | 9775585448 |
| 25 | 20820112373 |
[64,1063,1844,3996,8031,15792,31152,62349,126893, 261994,546766,1149413,2427843,5143554,10917253, 23198800,49332659,104956473,223368832,475481120, 1012314087,2155517167,4590184433,9775585448, 20820112373] |