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A012512 as a simple table

n a(n)
0 0
1 0
2 2
3 -3
4 12
5 -40
6 430
7 -3591
8 37464
9 -373752
10 4507738
11 -58823875
12 870967460
13 -13719012528
14 234072634822
15 -4250060142615
16 82733999849648
17 -1710175098180496
18 37504812533836722
19 -867602777991744483

[0,0,2,-3,12,-40,430,-3591,37464,-373752,4507738,
 -58823875,870967460,-13719012528,234072634822,
 -4250060142615,82733999849648,-1710175098180496,
 37504812533836722,-867602777991744483]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)