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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 40 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1210 |
| 8 | 1210 |
| 9 | 1 |
| 10 | 1 |
| 11 | 33880 |
| 12 | 1024870 |
| 13 | 33880 |
| 14 | 1 |
| 15 | 1 |
| 16 | 925771 |
| 17 | 784128037 |
| 18 | 784128037 |
| 19 | 925771 |
| 20 | 1 |
| 21 | 1 |
| 22 | 25095280 |
| 23 | 580812061522 |
| 24 | 16262737722616 |
| 25 | 580812061522 |
| 26 | 25095280 |
| 27 | 1 |
| 28 | 1 |
| 29 | 678468820 |
| 30 | 425659125229240 |
| 31 | 325671796712891524 |
[1,1,1,1,40,1,1,1210,1210,1,1,33880,1024870,33880, 1,1,925771,784128037,784128037,925771,1,1, 25095280,580812061522,16262737722616,580812061522, 25095280,1,1,678468820,425659125229240, 325671796712891524] |