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A159486 as a simple table

na(n)
01
111
249
3-1045
4-22079
558091
68587441
769366539
8-3565038335
9-79170548149
101439268811441
1172834751593131
12-338718631136831
13-66655130318970325
14-416165794764599759
1562610547619111490251
161138175082155994132481
17-59607424953500501311861

[1,11,49,-1045,-22079,58091,8587441,69366539,
 -3565038335,-79170548149,1439268811441,
 72834751593131,-338718631136831,
 -66655130318970325,-416165794764599759,
 62610547619111490251,1138175082155994132481,
 -59607424953500501311861]