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A210067 as a simple table

n a(n)
0 1
1 -4
2 0
3 16
4 0
5 -56
6 0
7 160
8 0
9 -404
10 0
11 944
12 0
13 -2072
14 0
15 4320
16 0
17 -8648
18 0
19 16720
20 0
21 -31360
22 0
23 57312
24 0
25 -102364
26 0
27 179104
28 0
29 -307672
30 0
31 519808
32 0
33 -864960
34 0
35 1419456
36 0
37 -2299832
38 0
39 3682400
40 0
41 -5831784
42 0
43 9141808
44 0
45 -14194200
46 0
47 21842368
48 0

[1,-4,0,16,0,-56,0,160,0,-404,0,944,0,-2072,0,
 4320,0,-8648,0,16720,0,-31360,0,57312,0,-102364,0,
 179104,0,-307672,0,519808,0,-864960,0,1419456,0,
 -2299832,0,3682400,0,-5831784,0,9141808,0,
 -14194200,0,21842368,0]

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Last modified July 24 01:41 EDT 2021. Contains 346269 sequences. (Running on oeis4.)