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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -25 |
| 3 | 251 |
| 4 | -1448 |
| 5 | 4829 |
| 6 | -6275 |
| 7 | -16745 |
| 8 | 85952 |
| 9 | -113895 |
| 10 | -120725 |
| 11 | 534611 |
| 12 | -363448 |
| 13 | -577739 |
| 14 | 418625 |
| 15 | 1212079 |
| 16 | 902656 |
| 17 | -6905935 |
| 18 | 2847375 |
| 19 | 10661419 |
| 20 | -6992392 |
| 21 | -4202995 |
| 22 | -13365275 |
| 23 | 18643271 |
| 24 | 21573952 |
| 25 | -25504055 |
| 26 | 14443475 |
| 27 | -73165437 |
| 28 | 24246760 |
| 29 | 128406629 |
| 30 | -30301975 |
[1,-25,251,-1448,4829,-6275,-16745,85952,-113895, -120725,534611,-363448,-577739,418625,1212079, 902656,-6905935,2847375,10661419,-6992392, -4202995,-13365275,18643271,21573952,-25504055, 14443475,-73165437,24246760,128406629,-30301975] |