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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 7 |
| 8 | 22 |
| 9 | 57 |
| 10 | 127 |
| 11 | 253 |
| 12 | 464 |
| 13 | 804 |
| 14 | 1354 |
| 15 | 2289 |
| 16 | 4005 |
| 17 | 7372 |
| 18 | 14198 |
| 19 | 28033 |
| 20 | 55523 |
| 21 | 108699 |
| 22 | 208982 |
| 23 | 394555 |
| 24 | 734561 |
| 25 | 1357136 |
| 26 | 2504932 |
| 27 | 4643816 |
| 28 | 8671852 |
| 29 | 16313856 |
| 30 | 30855957 |
| 31 | 58502733 |
| 32 | 110882143 |
| 33 | 209689343 |
| 34 | 395358538 |
| 35 | 743376838 |
[1,1,1,1,1,1,2,7,22,57,127,253,464,804,1354,2289, 4005,7372,14198,28033,55523,108699,208982,394555, 734561,1357136,2504932,4643816,8671852,16313856, 30855957,58502733,110882143,209689343,395358538, 743376838] |