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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 3 |
| 4 | 16 |
| 5 | 15 |
| 6 | 11704 |
| 7 | 1105685 |
| 8 | 11327177474 |
| 9 | 244115733950627 |
| 10 | 4354777045182131169523 |
| 11 | 8214950835161136722829165047 |
| 12 | 426292831687307296000152039222781332149 |
| 13 | 7528468333926810743153269968816648803479402170227 |
| 14 | 3337740693040652853366026406394437902927950280053024451402129 |
[1,0,3,16,15,11704,1105685,11327177474, 244115733950627,4354777045182131169523, 8214950835161136722829165047, 426292831687307296000152039222781332149, 7528468333926810743153269968816648803479402170227, 33377406930406528533660264063944379029279502800530\ 24451402129] |