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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -5 |
| 3 | 7 |
| 4 | -761 |
| 5 | 671 |
| 6 | -6617 |
| 7 | 1171733 |
| 8 | -143327 |
| 9 | 751279 |
| 10 | -55835135 |
| 11 | 830139 |
| 12 | -269564591 |
| 13 | 34395742267 |
| 14 | -10876020307 |
| 15 | 300151059037 |
| 16 | -586061125622639 |
| 17 | 54062195834749 |
| 18 | -1481133119857 |
| 19 | 2053580969474233 |
| 20 | -50687277590093 |
| 21 | 286263092775233 |
| 22 | -5884182435213075787 |
[0,1,-5,7,-761,671,-6617,1171733,-143327,751279, -55835135,830139,-269564591,34395742267, -10876020307,300151059037,-586061125622639, 54062195834749,-1481133119857,2053580969474233, -50687277590093,286263092775233, -5884182435213075787] |