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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 1 |
| 6 | 1 |
| 7 | 12 |
| 8 | 12 |
| 9 | 1 |
| 10 | 1 |
| 11 | 30 |
| 12 | 96 |
| 13 | 30 |
| 14 | 1 |
| 15 | 1 |
| 16 | 68 |
| 17 | 564 |
| 18 | 564 |
| 19 | 68 |
| 20 | 1 |
| 21 | 1 |
| 22 | 146 |
| 23 | 2800 |
| 24 | 6768 |
| 25 | 2800 |
| 26 | 146 |
| 27 | 1 |
| 28 | 1 |
| 29 | 304 |
| 30 | 12660 |
| 31 | 63008 |
| 32 | 63008 |
| 33 | 12660 |
| 34 | 304 |
| 35 | 1 |
| 36 | 1 |
| 37 | 622 |
| 38 | 54288 |
| 39 | 504648 |
| 40 | 1008128 |
| 41 | 504648 |
| 42 | 54288 |
| 43 | 622 |
| 44 | 1 |
| 45 | 1 |
| 46 | 1260 |
| 47 | 225860 |
| 48 | 3679344 |
| 49 | 13111504 |
| 50 | 13111504 |
| 51 | 3679344 |
| 52 | 225860 |
| 53 | 1260 |
| 54 | 1 |
[1,1,1,1,4,1,1,12,12,1,1,30,96,30,1,1,68,564,564, 68,1,1,146,2800,6768,2800,146,1,1,304,12660,63008, 63008,12660,304,1,1,622,54288,504648,1008128, 504648,54288,622,1,1,1260,225860,3679344,13111504, 13111504,3679344,225860,1260,1] |