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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 13 |
| 6 | 1 |
| 7 | 7 |
| 8 | 150 |
| 9 | 150 |
| 10 | 7 |
| 11 | 13 |
| 12 | 1848 |
| 13 | 5040 |
| 14 | 1848 |
| 15 | 13 |
| 16 | 55 |
| 17 | 22656 |
| 18 | 279918 |
| 19 | 279918 |
| 20 | 22656 |
| 21 | 55 |
| 22 | 133 |
| 23 | 278832 |
| 24 | 12205368 |
| 25 | 53808534 |
| 26 | 12205368 |
| 27 | 278832 |
| 28 | 133 |
| 29 | 463 |
| 30 | 3430776 |
| 31 | 595974240 |
| 32 | 9560464068 |
| 33 | 9560464068 |
| 34 | 595974240 |
| 35 | 3430776 |
| 36 | 463 |
| 37 | 1261 |
| 38 | 42221928 |
[0,1,1,1,13,1,7,150,150,7,13,1848,5040,1848,13,55, 22656,279918,279918,22656,55,133,278832,12205368, 53808534,12205368,278832,133,463,3430776, 595974240,9560464068,9560464068,595974240,3430776, 463,1261,42221928] |