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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 4 |
| 3 | 6 |
| 4 | 6 |
| 5 | 8 |
| 6 | 9 |
| 7 | 11 |
| 8 | 12 |
| 9 | 13 |
| 10 | 15 |
| 11 | 17 |
| 12 | 19 |
| 13 | 23 |
| 14 | 29 |
| 15 | 36 |
| 16 | 43 |
| 17 | 60 |
| 18 | 91 |
| 19 | 150 |
| 20 | 265 |
| 21 | 493 |
| 22 | 946 |
| 23 | 1848 |
| 24 | 3649 |
| 25 | 7246 |
| 26 | 14437 |
| 27 | 28814 |
| 28 | 57564 |
| 29 | 115059 |
| 30 | 230044 |
| 31 | 460010 |
| 32 | 919938 |
| 33 | 1839789 |
| 34 | 3679485 |
| 35 | 7358874 |
| 36 | 14717646 |
| 37 | 29435186 |
| 38 | 58870261 |
| 39 | 117740405 |
| 40 | 235480687 |
| 41 | 470961245 |
| 42 | 941922354 |
| 43 | 1883844567 |
[1,3,4,6,6,8,9,11,12,13,15,17,19,23,29,36,43,60, 91,150,265,493,946,1848,3649,7246,14437,28814, 57564,115059,230044,460010,919938,1839789,3679485, 7358874,14717646,29435186,58870261,117740405, 235480687,470961245,941922354,1883844567] |