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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 3 |
| 12 | 3 |
| 13 | 3 |
| 14 | 1 |
| 15 | 1 |
| 16 | 10 |
| 17 | 30 |
| 18 | 30 |
| 19 | 10 |
| 20 | 1 |
| 21 | 1 |
| 22 | 31 |
| 23 | 310 |
| 24 | 930 |
| 25 | 310 |
| 26 | 31 |
| 27 | 1 |
| 28 | 1 |
| 29 | 94 |
| 30 | 2914 |
| 31 | 29140 |
| 32 | 29140 |
| 33 | 2914 |
| 34 | 94 |
| 35 | 1 |
| 36 | 1 |
| 37 | 285 |
| 38 | 26790 |
| 39 | 830490 |
| 40 | 2768300 |
| 41 | 830490 |
| 42 | 26790 |
| 43 | 285 |
| 44 | 1 |
| 45 | 1 |
| 46 | 865 |
| 47 | 246525 |
| 48 | 23173350 |
| 49 | 239457950 |
| 50 | 239457950 |
| 51 | 23173350 |
| 52 | 246525 |
| 53 | 865 |
| 54 | 1 |
[1,1,1,1,1,1,1,1,1,1,1,3,3,3,1,1,10,30,30,10,1,1, 31,310,930,310,31,1,1,94,2914,29140,29140,2914,94, 1,1,285,26790,830490,2768300,830490,26790,285,1,1, 865,246525,23173350,239457950,239457950,23173350, 246525,865,1] |