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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 1 |
| 8 | 1 |
| 9 | 4 |
| 10 | 6 |
| 11 | 19 |
| 12 | 27 |
| 13 | 50 |
| 14 | 56 |
| 15 | 1 |
| 16 | 1 |
| 17 | 5 |
| 18 | 10 |
| 19 | 47 |
| 20 | 131 |
| 21 | 472 |
| 22 | 1326 |
| 23 | 3779 |
| 24 | 9013 |
| 25 | 19963 |
| 26 | 38073 |
| 27 | 65664 |
| 28 | 98804 |
| 29 | 133576 |
| 30 | 158658 |
| 31 | 1 |
| 32 | 1 |
| 33 | 6 |
| 34 | 16 |
| 35 | 103 |
| 36 | 497 |
| 37 | 3253 |
| 38 | 19735 |
| 39 | 120843 |
| 40 | 681474 |
| 41 | 3561696 |
[1,1,1,1,1,3,3,1,1,4,6,19,27,50,56,1,1,5,10,47, 131,472,1326,3779,9013,19963,38073,65664,98804, 133576,158658,1,1,6,16,103,497,3253,19735,120843, 681474,3561696] |