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A012933 as a simple table

n a(n)
0 1
1 0
2 4
3 -6
4 51
5 -180
6 1614
7 -9282
8 92981
9 -747432
10 8490344
11 -87525790
12 1128907527
13 -14143194780
14 206202445778
15 -3029299520730
16 49575702703017
17 -833078428220240
18 15183028632600076
19 -286645711942606518

[1,0,4,-6,51,-180,1614,-9282,92981,-747432,
 8490344,-87525790,1128907527,-14143194780,
 206202445778,-3029299520730,49575702703017,
 -833078428220240,15183028632600076,
 -286645711942606518]

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Last modified August 19 16:39 EDT 2022. Contains 356229 sequences. (Running on oeis4.)