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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 2 |
| 5 | 1 |
| 6 | 20 |
| 7 | 12 |
| 8 | 4 |
| 9 | 1 |
| 10 | 280 |
| 11 | 160 |
| 12 | 48 |
| 13 | 8 |
| 14 | 1 |
| 15 | 8064 |
| 16 | 4480 |
| 17 | 1280 |
| 18 | 192 |
| 19 | 16 |
| 20 | 1 |
| 21 | 473088 |
| 22 | 258048 |
| 23 | 71680 |
| 24 | 10240 |
| 25 | 768 |
| 26 | 32 |
| 27 | 1 |
| 28 | 56229888 |
| 29 | 30277632 |
| 30 | 8257536 |
| 31 | 1146880 |
| 32 | 81920 |
| 33 | 3072 |
| 34 | 64 |
| 35 | 1 |
| 36 | 13495173120 |
| 37 | 7197425664 |
| 38 | 1937768448 |
| 39 | 264241152 |
| 40 | 18350080 |
| 41 | 655360 |
[1,1,1,3,2,1,20,12,4,1,280,160,48,8,1,8064,4480, 1280,192,16,1,473088,258048,71680,10240,768,32,1, 56229888,30277632,8257536,1146880,81920,3072,64,1, 13495173120,7197425664,1937768448,264241152, 18350080,655360] |