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A227398 as a simple table

n a(n)
0 1
1 -1
2 1
3 -1
4 1
5 -2
6 2
7 -3
8 3
9 -3
10 4
11 -5
12 6
13 -7
14 8
15 -9
16 10
17 -12
18 14
19 -16
20 18
21 -20
22 23
23 -26
24 30
25 -34
26 38
27 -42
28 47
29 -53
30 60
31 -67
32 74
33 -82
34 91
35 -102
36 114
37 -126
38 139
39 -153
40 169
41 -187
42 207
43 -228
44 250
45 -274
46 301
47 -331
48 364
49 -399
50 436
51 -476
52 520
53 -569
54 622
55 -679

[1,-1,1,-1,1,-2,2,-3,3,-3,4,-5,6,-7,8,-9,10,-12,
 14,-16,18,-20,23,-26,30,-34,38,-42,47,-53,60,-67,
 74,-82,91,-102,114,-126,139,-153,169,-187,207,
 -228,250,-274,301,-331,364,-399,436,-476,520,-569,
 622,-679]

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)