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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 2 |
| 7 | 3 |
| 8 | 4 |
| 9 | 4 |
| 10 | 5 |
| 11 | 7 |
| 12 | 10 |
| 13 | 11 |
| 14 | 16 |
| 15 | 23 |
| 16 | 28 |
| 17 | 43 |
| 18 | 62 |
| 19 | 106 |
| 20 | 177 |
| 21 | 309 |
| 22 | 483 |
| 23 | 795 |
| 24 | 1305 |
| 25 | 2105 |
| 26 | 3525 |
| 27 | 5923 |
| 28 | 10096 |
| 29 | 17259 |
| 30 | 30004 |
[0,0,1,2,2,2,3,4,4,5,7,10,11,16,23,28,43,62,106, 177,309,483,795,1305,2105,3525,5923,10096,17259, 30004] |