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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 10 |
| 4 | 106 |
| 5 | 2234 |
| 6 | 90570 |
| 7 | 6986490 |
| 8 | 1026623306 |
| 9 | 289475035770 |
| 10 | 158101579596106 |
| 11 | 168768027732007674 |
| 12 | 354715566244066506058 |
| 13 | 1476006372586517922472826 |
| 14 | 12205618234758923312503183690 |
| 15 | 201082085503026084194089831880698 |
[1,2,10,106,2234,90570,6986490,1026623306, 289475035770,158101579596106,168768027732007674, 354715566244066506058,1476006372586517922472826, 12205618234758923312503183690, 201082085503026084194089831880698] |