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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 3 |
| 3 | 3 |
| 4 | 9 |
| 5 | 35 |
| 6 | 9 |
| 7 | 22 |
| 8 | 104 |
| 9 | 104 |
| 10 | 22 |
| 11 | 51 |
| 12 | 341 |
| 13 | 920 |
| 14 | 341 |
| 15 | 51 |
| 16 | 121 |
| 17 | 1189 |
| 18 | 7682 |
| 19 | 7682 |
| 20 | 1189 |
| 21 | 121 |
| 22 | 292 |
| 23 | 4040 |
| 24 | 61574 |
| 25 | 137961 |
| 26 | 61574 |
| 27 | 4040 |
| 28 | 292 |
| 29 | 704 |
| 30 | 13560 |
| 31 | 490760 |
| 32 | 2412274 |
| 33 | 2412274 |
| 34 | 490760 |
| 35 | 13560 |
| 36 | 704 |
| 37 | 1691 |
| 38 | 45803 |
| 39 | 3929027 |
| 40 | 42882766 |
| 41 | 96014413 |
| 42 | 42882766 |
[3,3,3,9,35,9,22,104,104,22,51,341,920,341,51,121, 1189,7682,7682,1189,121,292,4040,61574,137961, 61574,4040,292,704,13560,490760,2412274,2412274, 490760,13560,704,1691,45803,3929027,42882766, 96014413,42882766] |