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A156656 as a simple table

na(n)
01
1-17
2-18
36749
46822
5-2441897
6-7394058
714988306853
815126584742
9-9866867955647
10-49788967645098
1179396908872686679
12240385445052560262
13-226519192557338133197
14-1600244381647342824138
1513919437045277101776460901
1614047690539171597748097382

[1,-17,-18,6749,6822,-2441897,-7394058,
 14988306853,15126584742,-9866867955647,
 -49788967645098,79396908872686679,
 240385445052560262,-226519192557338133197,
 -1600244381647342824138,
 13919437045277101776460901,
 14047690539171597748097382]