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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 2 |
| 9 | 3 |
| 10 | 5 |
| 11 | 5 |
| 12 | 4 |
| 13 | 10 |
| 14 | 7 |
| 15 | 10 |
| 16 | 18 |
| 17 | 18 |
| 18 | 20 |
| 19 | 54 |
| 20 | 43 |
| 21 | 69 |
| 22 | 145 |
| 23 | 149 |
| 24 | 219 |
| 25 | 551 |
| 26 | 486 |
| 27 | 835 |
| 28 | 1828 |
| 29 | 2107 |
| 30 | 2978 |
[1,2,1,1,2,1,2,3,2,3,5,5,4,10,7,10,18,18,20,54,43, 69,145,149,219,551,486,835,1828,2107,2978] |