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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 1 |
| 6 | 3 |
| 7 | 9 |
| 8 | 9 |
| 9 | 1 |
| 10 | 3 |
| 11 | 12 |
| 12 | 18 |
| 13 | 12 |
| 14 | 1 |
| 15 | 3 |
| 16 | 15 |
| 17 | 30 |
| 18 | 30 |
| 19 | 15 |
| 20 | 1 |
| 21 | 3 |
| 22 | 18 |
| 23 | 45 |
| 24 | 60 |
| 25 | 45 |
| 26 | 18 |
| 27 | 1 |
| 28 | 3 |
| 29 | 21 |
| 30 | 63 |
| 31 | 105 |
| 32 | 105 |
| 33 | 63 |
| 34 | 21 |
| 35 | 1 |
| 36 | 3 |
| 37 | 24 |
| 38 | 84 |
| 39 | 168 |
| 40 | 210 |
| 41 | 168 |
| 42 | 84 |
| 43 | 24 |
| 44 | 1 |
| 45 | 3 |
| 46 | 27 |
| 47 | 108 |
| 48 | 252 |
| 49 | 378 |
| 50 | 378 |
| 51 | 252 |
| 52 | 108 |
| 53 | 27 |
| 54 | 1 |
[1,3,1,3,6,1,3,9,9,1,3,12,18,12,1,3,15,30,30,15,1, 3,18,45,60,45,18,1,3,21,63,105,105,63,21,1,3,24, 84,168,210,168,84,24,1,3,27,108,252,378,378,252, 108,27,1] |