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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 5 |
| 5 | 7 |
| 6 | 13 |
| 7 | 23 |
| 8 | 42 |
| 9 | 71 |
| 10 | 122 |
| 11 | 241 |
| 12 | 412 |
| 13 | 789 |
| 14 | 1413 |
| 15 | 2770 |
| 16 | 4859 |
| 17 | 9545 |
| 18 | 16955 |
| 19 | 34039 |
| 20 | 60484 |
| 21 | 121241 |
| 22 | 216830 |
| 23 | 441223 |
| 24 | 785885 |
| 25 | 1597803 |
| 26 | 2867949 |
| 27 | 5874665 |
| 28 | 10544609 |
| 29 | 21636090 |
| 30 | 39034399 |
| 31 | 80414166 |
| 32 | 145210901 |
| 33 | 299284792 |
[1,2,2,5,7,13,23,42,71,122,241,412,789,1413,2770, 4859,9545,16955,34039,60484,121241,216830,441223, 785885,1597803,2867949,5874665,10544609,21636090, 39034399,80414166,145210901,299284792] |