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A127187 as a simple table

n a(n)
0 1
1 -1
2 1
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 1
11 0
12 -3
13 0
14 18
15 0
16 -121
17 0
18 1044
19 0
20 -11112
21 0
22 142419
23 0
24 -2164506
25 0
26 38488964
27 0
28 -791648701
29 0
30 18649007091
31 0
32 -498838420314
33 0
34 15036512507141
35 0
36 -507331242588268
37 0
38 19044960439970134
39 0

[1,-1,1,0,0,0,0,0,0,0,1,0,-3,0,18,0,-121,0,1044,0,
 -11112,0,142419,0,-2164506,0,38488964,0,
 -791648701,0,18649007091,0,-498838420314,0,
 15036512507141,0,-507331242588268,0,
 19044960439970134,0]

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Last modified February 28 01:46 EST 2020. Contains 332319 sequences. (Running on oeis4.)