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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 9 |
| 6 | 5 |
| 7 | 11 |
| 8 | 26 |
| 9 | 66 |
| 10 | 15 |
| 11 | 36 |
| 12 | 92 |
| 13 | 249 |
| 14 | 712 |
| 15 | 52 |
| 16 | 135 |
| 17 | 371 |
| 18 | 1075 |
| 19 | 3274 |
| 20 | 10457 |
| 21 | 203 |
| 22 | 566 |
| 23 | 1663 |
| 24 | 5133 |
| 25 | 16601 |
| 26 | 56135 |
| 27 | 198091 |
| 28 | 877 |
| 29 | 2610 |
| 30 | 8155 |
| 31 | 26683 |
| 32 | 91226 |
| 33 | 325269 |
| 34 | 1207433 |
| 35 | 4659138 |
| 36 | 4140 |
| 37 | 13082 |
| 38 | 43263 |
| 39 | 149410 |
| 40 | 537813 |
| 41 | 2014321 |
| 42 | 7837862 |
| 43 | 31638625 |
| 44 | 132315780 |
[1,1,2,2,4,9,5,11,26,66,15,36,92,249,712,52,135, 371,1075,3274,10457,203,566,1663,5133,16601,56135, 198091,877,2610,8155,26683,91226,325269,1207433, 4659138,4140,13082,43263,149410,537813,2014321, 7837862,31638625,132315780] |