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A159332 as a simple table

na(n)
01
1-25
2877
3-1575
4461639
5-134925
645446437
7-8678775
82314052879
9-655241265
1018918935635
11-5628028875
122132438441743829
13-15637256598405
14-1651173354846701
158679986982158625
16109262802769968495103
17-7335978199486176345
18-159681263860286439393761

[1,-25,877,-1575,461639,-134925,45446437,-8678775,
 2314052879,-655241265,18918935635,-5628028875,
 2132438441743829,-15637256598405,
 -1651173354846701,8679986982158625,
 109262802769968495103,-7335978199486176345,
 -159681263860286439393761]