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| n | a(n) |
|---|---|
| 23 | 1 |
| 24 | -23 |
| 25 | 253 |
| 26 | -1771 |
| 27 | 8832 |
| 28 | -33143 |
| 29 | 95611 |
| 30 | -209231 |
| 31 | 317009 |
| 32 | -181401 |
| 33 | -686642 |
| 34 | 2828977 |
| 35 | -6099278 |
| 36 | 8422623 |
| 37 | -4906406 |
| 38 | -10919687 |
| 39 | 41968146 |
| 40 | -78977952 |
| 41 | 93297545 |
| 42 | -40351223 |
| 43 | -117265247 |
| 44 | 367581446 |
| 45 | -606562624 |
| 46 | 631382751 |
| 47 | -207879980 |
| 48 | -777907725 |
| 49 | 2132043121 |
[1,-23,253,-1771,8832,-33143,95611,-209231,317009, -181401,-686642,2828977,-6099278,8422623,-4906406, -10919687,41968146,-78977952,93297545,-40351223, -117265247,367581446,-606562624,631382751, -207879980,-777907725,2132043121] |