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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 11 |
| 6 | 17 |
| 7 | 37 |
| 8 | 53 |
| 9 | 103 |
| 10 | 255 |
| 11 | 339 |
| 12 | 759 |
| 13 | 1259 |
| 14 | 1609 |
| 15 | 2589 |
| 16 | 5119 |
| 17 | 9791 |
| 18 | 12075 |
| 19 | 22249 |
| 20 | 32991 |
| 21 | 40025 |
| 22 | 70487 |
| 23 | 101697 |
| 24 | 173681 |
| 25 | 345855 |
| 26 | 483329 |
| 27 | 570077 |
| 28 | 789639 |
| 29 | 927405 |
| 30 | 1274117 |
| 31 | 3725409 |
| 32 | 5010687 |
| 33 | 7755775 |
| 34 | 8953855 |
| 35 | 18108417 |
| 36 | 20792119 |
[0,1,2,4,11,17,37,53,103,255,339,759,1259,1609, 2589,5119,9791,12075,22249,32991,40025,70487, 101697,173681,345855,483329,570077,789639,927405, 1274117,3725409,5010687,7755775,8953855,18108417, 20792119] |