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A012362 as a simple table

n a(n)
0 0
1 1
2 2
3 4
4 0
5 -60
6 -488
7 -1416
8 20160
9 427280
10 3830432
11 -7233536
12 -955342080
13 -18140316480
14 -120169970048
15 3583792700544
16 145171043297280
17 2388380775676160
18 -7380519436860928
19 -1710892457585202176

[0,1,2,4,0,-60,-488,-1416,20160,427280,3830432,
 -7233536,-955342080,-18140316480,-120169970048,
 3583792700544,145171043297280,2388380775676160,
 -7380519436860928,-1710892457585202176]

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Last modified July 3 11:18 EDT 2022. Contains 355050 sequences. (Running on oeis4.)