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A156758 as a simple table

na(n)
01
1-19
2-20
39139
49220
5-4037899
6-12206060
730276088403
830504279940
9-24347629105189
10-122654643961100
11239338306197009289
12723419793280402660
13-834151618558367715079
14-5883014418494598304940
1562617114255248306776597731
1663088459108278656408525380

[1,-19,-20,9139,9220,-4037899,-12206060,
 30276088403,30504279940,-24347629105189,
 -122654643961100,239338306197009289,
 723419793280402660,-834151618558367715079,
 -5883014418494598304940,
 62617114255248306776597731,
 63088459108278656408525380]