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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -3 |
| 3 | 31 |
| 4 | -559 |
| 5 | 14541 |
| 6 | -496811 |
| 7 | 21081859 |
| 8 | -1070585055 |
| 9 | 63366015673 |
| 10 | -4285932328819 |
| 11 | 326248732427751 |
| 12 | -27610580638457807 |
| 13 | 2572239828612623365 |
| 14 | -261621661000490429211 |
| 15 | 28849626308051995285771 |
| 16 | -3428690784657696770593471 |
| 17 | 436924188109882619766249201 |
| 18 | -59432725217403244945921112675 |
| 19 | 8595527924368773785463788378287 |
| 20 | -1317123285394547040368548520041839 |
| 21 | 213171869078193696050387803319525821 |
| 22 | -36338236299957647745418230431675850763 |
| 23 | 6507698606647750492700809995200106342675 |
| 24 | -1221579456277487714539848255959245396739999 |
[1,1,-3,31,-559,14541,-496811,21081859, -1070585055,63366015673,-4285932328819, 326248732427751,-27610580638457807, 2572239828612623365,-261621661000490429211, 28849626308051995285771, -3428690784657696770593471, 436924188109882619766249201, -59432725217403244945921112675, 8595527924368773785463788378287, -1317123285394547040368548520041839, 213171869078193696050387803319525821, -36338236299957647745418230431675850763, 6507698606647750492700809995200106342675, -1221579456277487714539848255959245396739999] |