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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 2 |
| 3 | 5 |
| 4 | 4 |
| 5 | 10 |
| 6 | 10 |
| 7 | 23 |
| 8 | 32 |
| 9 | 62 |
| 10 | 100 |
| 11 | 198 |
| 12 | 336 |
| 13 | 642 |
| 14 | 1166 |
| 15 | 2205 |
| 16 | 4081 |
| 17 | 7750 |
| 18 | 14533 |
| 19 | 27658 |
| 20 | 52388 |
| 21 | 99960 |
| 22 | 190558 |
| 23 | 364938 |
| 24 | 698874 |
| 25 | 1342514 |
| 26 | 2580827 |
| 27 | 4971652 |
| 28 | 9586396 |
| 29 | 18514020 |
| 30 | 35790268 |
| 31 | 69275871 |
| 32 | 134215781 |
| 33 | 260305069 |
| 34 | 505286428 |
[1,3,2,5,4,10,10,23,32,62,100,198,336,642,1166, 2205,4081,7750,14533,27658,52388,99960,190558, 364938,698874,1342514,2580827,4971652,9586396, 18514020,35790268,69275871,134215781,260305069, 505286428] |