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A255315 Lower triangular matrix describing the shape of a half hyperbola in the Dirichlet divisor problem.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 0
8 2
9 1
10 1
11 0
12 2
13 1
14 1
15 1
16 0
17 1
18 2
19 1
20 1
21 1
22 0
23 1
24 2
25 1
26 1
27 1
28 1
29 0
30 1
31 1
32 2
33 1
34 1
35 1
36 1
37 0
38 0
39 2
40 2
41 1
42 1
43 1
44 1
45 1
46 0
47 0
48 2
49 1
50 2
51 1
52 1
53 1
54 1
55 1
56 0
57 0
58 2
59 1
60 2
61 1
62 1
63 1
64 1
65 1
66 1
67 0
68 0
69 1
70 2
71 1
72 2
73 1
74 1
75 1
76 1
77 1
78 1

List of values

[1, 1, 1, 1, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 1, 0, 1, 2, 1, 1, 1, 0, 1, 2, 1, 1, 1, 1, 0, 1, 1, 2, 1, 1, 1, 1, 0, 0, 2, 2, 1, 1, 1, 1, 1, 0, 0, 2, 1, 2, 1, 1, 1, 1, 1, 0, 0, 2, 1, 2, 1, 1, 1, 1, 1, 1, 0, 0, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1]

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