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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -506 |
| 2 | -15625 |
| 3 | -89206 |
| 4 | -271151 |
| 5 | -420838 |
| 6 | -638066 |
| 7 | 0 |
| 8 | 56446 |
| 9 | 2172742 |
| 10 | 1771561 |
| 11 | 5443200 |
| 12 | 0 |
| 13 | 7082714 |
| 14 | -4570773 |
| 15 | -98282 |
| 16 | -13055614 |
| 17 | 0 |
| 18 | -29937600 |
| 19 | 4072822 |
| 20 | -26439842 |
| 21 | 0 |
| 22 | 0 |
| 23 | 26266966 |
| 24 | -24137569 |
| 25 | 70761600 |
| 26 | 38871506 |
| 27 | 7906250 |
| 28 | 52240606 |
| 29 | 56926298 |
| 30 | -29158919 |
[1,-506,-15625,-89206,-271151,-420838,-638066,0, 56446,2172742,1771561,5443200,0,7082714,-4570773, -98282,-13055614,0,-29937600,4072822,-26439842,0, 0,26266966,-24137569,70761600,38871506,7906250, 52240606,56926298,-29158919] |