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A159499 as a simple table

na(n)
01
1-13
2157
3-1729
484989
5-146965
68050867
7-9421321
8456972149
9-744875677
108651299535
1111895490607
121018477796809919
13-30162393397669
14-1280821166020571
1521331381569607655
1696597491471331326773
17-21292394561108375341
18-168562091883358662025871

[1,-13,157,-1729,84989,-146965,8050867,-9421321,
 456972149,-744875677,8651299535,11895490607,
 1018477796809919,-30162393397669,
 -1280821166020571,21331381569607655,
 96597491471331326773,-21292394561108375341,
 -168562091883358662025871]