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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 12 |
| 5 | 20 |
| 6 | 27 |
| 7 | 42 |
| 8 | 58 |
| 9 | 82 |
| 10 | 111 |
| 11 | 155 |
| 12 | 203 |
| 13 | 276 |
| 14 | 361 |
| 15 | 476 |
| 16 | 615 |
| 17 | 802 |
| 18 | 1020 |
| 19 | 1311 |
| 20 | 1658 |
| 21 | 2100 |
| 22 | 2631 |
| 23 | 3306 |
| 24 | 4102 |
| 25 | 5109 |
| 26 | 6304 |
| 27 | 7780 |
| 28 | 9537 |
| 29 | 11696 |
| 30 | 14244 |
| 31 | 17358 |
| 32 | 21036 |
| 33 | 25476 |
| 34 | 30717 |
| 35 | 37019 |
| 36 | 44414 |
| 37 | 53268 |
[1,3,5,8,12,20,27,42,58,82,111,155,203,276,361, 476,615,802,1020,1311,1658,2100,2631,3306,4102, 5109,6304,7780,9537,11696,14244,17358,21036,25476, 30717,37019,44414,53268] |