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A013534 as a simple table

na(n)
01
1-1
21
3-5029
46697
5-375719873
6186044689
7-1770350411
8102625697881591
9-15912188224095499151
101419184560088744177499
11-323645955378411578735051
12935339682040604214800761
13-36813244507954712597112169117
1445816041290074218754101655557981

[1,-1,1,-5029,6697,-375719873,186044689,
 -1770350411,102625697881591,-15912188224095499151,
 1419184560088744177499,-323645955378411578735051,
 935339682040604214800761,
 -36813244507954712597112169117,
 45816041290074218754101655557981]