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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 8 |
| 6 | 19 |
| 7 | 26 |
| 8 | 28 |
| 9 | 38 |
| 10 | 43 |
| 11 | 67 |
| 12 | 331 |
| 13 | 359 |
| 14 | 832 |
| 15 | 907 |
| 16 | 1880 |
| 17 | 2359 |
| 18 | 4301 |
| 19 | 5896 |
| 20 | 6187 |
| 21 | 37154 |
| 22 | 40411 |
| 23 | 59584 |
[1,2,4,7,8,19,26,28,38,43,67,331,359,832,907,1880, 2359,4301,5896,6187,37154,40411,59584] |