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A109978 as a simple table

n a(n)
1 1
2 1
3 1
4 -1
5 1
6 1
7 2
8 -2
9 2
10 1
11 -5
12 5
13 -4
14 5
15 1
16 13
17 -14
18 11
19 -7
20 12
21 1
22 -33
23 40
24 -35
25 20
26 -5
27 27
28 1
29 80
30 -111
31 113
32 -77
33 21
34 34
35 58
36 1
37 -184
38 293
39 -350
40 294
41 -144
42 -27
43 238
44 121
45 1
46 402
47 -731
48 1021
49 -1042
50 716
51 -249
52 -153
53 1063
54 248
55 1
56 -840
57 1726
58 -2796
59 3409
60 -2982
61 1755
62 -724
63 318
64 4037
65 503
66 1

[1,1,1,-1,1,1,2,-2,2,1,-5,5,-4,5,1,13,-14,11,-7,
 12,1,-33,40,-35,20,-5,27,1,80,-111,113,-77,21,34,
 58,1,-184,293,-350,294,-144,-27,238,121,1,402,
 -731,1021,-1042,716,-249,-153,1063,248,1,-840,
 1726,-2796,3409,-2982,1755,-724,318,4037,503,1]

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Last modified August 10 11:52 EDT 2020. Contains 336379 sequences. (Running on oeis4.)