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A137830 as a simple table

n a(n)
0 1
1 -2
2 0
3 0
4 4
5 -4
6 0
7 0
8 9
9 -12
10 0
11 0
12 20
13 -24
14 0
15 0
16 42
17 -50
18 0
19 0
20 80
21 -92
22 0
23 0
24 147
25 -172
26 0
27 0
28 260
29 -296
30 0
31 0
32 445
33 -510
34 0
35 0
36 744
37 -840
38 0
39 0
40 1215
41 -1372
42 0
43 0
44 1944
45 -2176
46 0
47 0
48 3059
49 -3424
50 0
51 0
52 4740
53 -5268
54 0
55 0
56 7239
57 -8040
58 0
59 0
60 10920

[1,-2,0,0,4,-4,0,0,9,-12,0,0,20,-24,0,0,42,-50,0,
 0,80,-92,0,0,147,-172,0,0,260,-296,0,0,445,-510,0,
 0,744,-840,0,0,1215,-1372,0,0,1944,-2176,0,0,3059,
 -3424,0,0,4740,-5268,0,0,7239,-8040,0,0,10920]

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Last modified April 24 08:28 EDT 2024. Contains 371927 sequences. (Running on oeis4.)