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| n | a(n) |
|---|---|
| 1 | 14 |
| 2 | 196 |
| 3 | 216 |
| 4 | 1200 |
| 5 | 4416 |
| 6 | 14976 |
| 7 | 60984 |
| 8 | 231744 |
| 9 | 851400 |
| 10 | 3276624 |
| 11 | 12438144 |
| 12 | 46737936 |
| 13 | 177585096 |
| 14 | 673147200 |
| 15 | 2544020136 |
| 16 | 9639951936 |
| 17 | 36515578944 |
| 18 | 138204393264 |
| 19 | 523395873000 |
| 20 | 1982108510304 |
| 21 | 7504603109784 |
| 22 | 28417632893376 |
[14,196,216,1200,4416,14976,60984,231744,851400, 3276624,12438144,46737936,177585096,673147200, 2544020136,9639951936,36515578944,138204393264, 523395873000,1982108510304,7504603109784, 28417632893376] |