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A156358 as a simple table

na(n)
01
1-3
2-13
3333
42717
5-131043
6-1599793
7109190253
81777008857
9-156107958723
10-3175649491573
11341011318885773
128324471625279797
13-1056450457249168803
14-30087334294452702553
154405799115103013278893
16143400677661526320767537
17-23798518054913516311313283

[1,-3,-13,333,2717,-131043,-1599793,109190253,
 1777008857,-156107958723,-3175649491573,
 341011318885773,8324471625279797,
 -1056450457249168803,-30087334294452702553,
 4405799115103013278893,143400677661526320767537,
 -23798518054913516311313283]