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A130182 as a simple table

n a(n)
0 1
1 -2
2 1
3 0
4 -2
5 1
6 0
7 -12
8 4
9 1
10 0
11 -144
12 28
13 20
14 1
15 0
16 -2880
17 216
18 508
19 50
20 1
21 0
22 -86400
23 -2592
24 17400
25 2548
26 98
27 1
28 0
29 -3628800
30 -449280
31 788688
32 153760
33 8568
34 168
35 1
36 0
37 -203212800
38 -42405120
39 46032768
40 11269008
41 811648
42 23016
43 264
44 1
45 0
46 -14631321600
47 -4187635200
48 3372731136

[1,-2,1,0,-2,1,0,-12,4,1,0,-144,28,20,1,0,-2880,
 216,508,50,1,0,-86400,-2592,17400,2548,98,1,0,
 -3628800,-449280,788688,153760,8568,168,1,0,
 -203212800,-42405120,46032768,11269008,811648,
 23016,264,1,0,-14631321600,-4187635200,3372731136]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)