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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 15 |
| 5 | 6 |
| 6 | 84 |
| 7 | 8 |
| 8 | 165 |
| 9 | 55 |
| 10 | 286 |
| 11 | 12 |
| 12 | 6188 |
| 13 | 14 |
| 14 | 680 |
| 15 | 816 |
| 16 | 4845 |
| 17 | 18 |
| 18 | 33649 |
| 19 | 20 |
| 20 | 53130 |
| 21 | 2024 |
| 22 | 2300 |
| 23 | 24 |
| 24 | 2629575 |
| 25 | 351 |
| 26 | 3654 |
| 27 | 4060 |
| 28 | 237336 |
| 29 | 30 |
| 30 | 10295472 |
| 31 | 32 |
| 32 | 435897 |
| 33 | 7140 |
| 34 | 7770 |
| 35 | 8436 |
| 36 | 177232627 |
| 37 | 38 |
| 38 | 10660 |
| 39 | 11480 |
| 40 | 62891499 |
| 41 | 42 |
| 42 | 85900584 |
| 43 | 44 |
| 44 | 1906884 |
| 45 | 2118760 |
[1,3,4,15,6,84,8,165,55,286,12,6188,14,680,816, 4845,18,33649,20,53130,2024,2300,24,2629575,351, 3654,4060,237336,30,10295472,32,435897,7140,7770, 8436,177232627,38,10660,11480,62891499,42, 85900584,44,1906884,2118760] |