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A157775 as a simple table

na(n)
01
1-7
2-207
35033
4254817
5-10607527
6-791667567
746302831113
84598646577857
9-345957250040647
10-42939902963200527
113948429959260709993
12588076578254148478497
13-63907268969676802356967
14-11104661760079526724365487
151392418795346133382585129673

[1,-7,-207,5033,254817,-10607527,-791667567,
 46302831113,4598646577857,-345957250040647,
 -42939902963200527,3948429959260709993,
 588076578254148478497,-63907268969676802356967,
 -11104661760079526724365487,
 1392418795346133382585129673]