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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 11 |
| 6 | 20 |
| 7 | 21 |
| 8 | 32 |
| 9 | 33 |
| 10 | 41 |
| 11 | 93 |
| 12 | 187 |
| 13 | 265 |
| 14 | 380 |
| 15 | 1088 |
| 16 | 1459 |
| 17 | 1671 |
| 18 | 7328 |
| 19 | 11524 |
| 20 | 14167 |
| 21 | 21719 |
| 22 | 47439 |
| 23 | 74045 |
[1,2,4,8,11,20,21,32,33,41,93,187,265,380,1088, 1459,1671,7328,11524,14167,21719,47439,74045] |