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| n | a(n) |
|---|---|
| 2 | 2 |
| 3 | 12 |
| 4 | 14 |
| 5 | 600 |
| 6 | 11 |
| 7 | 7840 |
| 8 | 494 |
| 9 | 105840 |
| 10 | 37145 |
| 11 | 8964648 |
| 12 | 392863 |
| 13 | 64128064 |
| 14 | 131905 |
| 15 | 2473511040 |
| 16 | 117285338 |
| 17 | 56166368544 |
| 18 | 3650109911 |
| 19 | 426684744200 |
| 20 | 860010277 |
| 21 | 46593974066640 |
| 22 | 584803025179 |
| 23 | 551568386713344 |
| 24 | 39181802686993 |
| 25 | 36562298361680000 |
| 26 | 103559043001879 |
| 27 | 3153558501219672000 |
[2,12,14,600,11,7840,494,105840,37145,8964648, 392863,64128064,131905,2473511040,117285338, 56166368544,3650109911,426684744200,860010277, 46593974066640,584803025179,551568386713344, 39181802686993,36562298361680000,103559043001879, 3153558501219672000] |