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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 8 |
| 6 | 4 |
| 7 | 1 |
| 8 | 20 |
| 9 | 52 |
| 10 | 8 |
| 11 | 1 |
| 12 | 40 |
| 13 | 292 |
| 14 | 320 |
| 15 | 16 |
| 16 | 1 |
| 17 | 70 |
| 18 | 1092 |
| 19 | 3824 |
| 20 | 1936 |
| 21 | 32 |
| 22 | 1 |
| 23 | 112 |
| 24 | 3192 |
| 25 | 25664 |
| 26 | 47824 |
| 27 | 11648 |
| 28 | 64 |
| 29 | 1 |
| 30 | 168 |
| 31 | 7896 |
| 32 | 121424 |
| 33 | 561104 |
| 34 | 585536 |
| 35 | 69952 |
| 36 | 128 |
| 37 | 1 |
| 38 | 240 |
| 39 | 17304 |
| 40 | 453056 |
| 41 | 4203824 |
| 42 | 11807616 |
| 43 | 7096384 |
| 44 | 419840 |
| 45 | 256 |
| 46 | 1 |
| 47 | 330 |
| 48 | 34584 |
| 49 | 1422080 |
| 50 | 23232176 |
| 51 | 137922336 |
| 52 | 243248704 |
| 53 | 85576448 |
| 54 | 2519296 |
| 55 | 512 |
[1,1,2,1,8,4,1,20,52,8,1,40,292,320,16,1,70,1092, 3824,1936,32,1,112,3192,25664,47824,11648,64,1, 168,7896,121424,561104,585536,69952,128,1,240, 17304,453056,4203824,11807616,7096384,419840,256, 1,330,34584,1422080,23232176,137922336,243248704, 85576448,2519296,512] |