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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 1 |
| 5 | 16 |
| 6 | 1 |
| 7 | 65 |
| 8 | 20 |
| 9 | 1 |
| 10 | 246 |
| 11 | 225 |
| 12 | 1 |
| 13 | 917 |
| 14 | 1659 |
| 15 | 175 |
| 16 | 1 |
| 17 | 3424 |
| 18 | 10192 |
| 19 | 3136 |
| 20 | 1 |
| 21 | 12861 |
| 22 | 56664 |
| 23 | 34104 |
| 24 | 1764 |
| 25 | 1 |
| 26 | 48610 |
| 27 | 296055 |
| 28 | 291600 |
| 29 | 44100 |
| 30 | 1 |
| 31 | 184745 |
| 32 | 1482965 |
| 33 | 2157705 |
| 34 | 639540 |
| 35 | 19404 |
| 36 | 1 |
| 37 | 705420 |
| 38 | 7205550 |
| 39 | 14488540 |
| 40 | 7040385 |
| 41 | 627264 |
| 42 | 1 |
| 43 | 2704143 |
| 44 | 34213530 |
| 45 | 90714910 |
| 46 | 65224445 |
| 47 | 11424699 |
| 48 | 226512 |
[1,1,1,3,1,16,1,65,20,1,246,225,1,917,1659,175,1, 3424,10192,3136,1,12861,56664,34104,1764,1,48610, 296055,291600,44100,1,184745,1482965,2157705, 639540,19404,1,705420,7205550,14488540,7040385, 627264,1,2704143,34213530,90714910,65224445, 11424699,226512] |