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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 0 |
| 4 | 4 |
| 5 | -13 |
| 6 | 19 |
| 7 | 29 |
| 8 | -271 |
| 9 | 813 |
| 10 | -751 |
| 11 | -4760 |
| 12 | 27090 |
| 13 | -64793 |
| 14 | -7211 |
| 15 | 711474 |
| 16 | -2960908 |
| 17 | 5032677 |
| 18 | 10613605 |
| 19 | -101563784 |
| 20 | 324249252 |
| 21 | -277992739 |
| 22 | -2445619767 |
| 23 | 13926689707 |
| 24 | -33471888047 |
| 25 | -12186274415 |
| 26 | 441311889151 |
| 27 | -1820392010748 |
| 28 | 2958129727814 |
| 29 | 8133042126855 |
| 30 | -71172149566357 |
| 31 | 222777402233343 |
[1,-1,0,4,-13,19,29,-271,813,-751,-4760,27090, -64793,-7211,711474,-2960908,5032677,10613605, -101563784,324249252,-277992739,-2445619767, 13926689707,-33471888047,-12186274415, 441311889151,-1820392010748,2958129727814, 8133042126855,-71172149566357,222777402233343] |