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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A053619 a(n) = round(n/(log(n)-1) - pi(n)).

Table of values

n a(n)
1 -1
2 -8
3 28
4 8
5 5
6 5
7 3
8 3
9 4
10 4
11 3
12 3
13 2
14 3
15 3
16 3
17 2
18 3
19 2
20 2
21 2
22 3
23 2
24 2
25 2
26 3
27 3
28 3
29 2
30 2
31 2
32 2
33 2
34 2
35 3
36 3
37 2
38 2
39 3
40 3
41 2
42 2
43 2
44 2
45 2
46 2
47 1
48 2
49 2
50 2
51 2
52 3
53 2
54 2
55 2
56 3
57 3
58 3
59 2
60 2
61 2
62 2
63 2
64 2
65 2
66 3
67 2
68 2
69 2
70 3
71 2
72 2
73 1
74 1
75 2
76 2
77 2
78 2
79 1
80 2
81 2
82 2
83 1
84 1
85 2
86 2
87 2
88 2
89 2
90 2
91 2
92 2
93 2
94 3
95 3
96 3
97 2
98 2
99 3
100 3
101 2
102 2
103 1

List of values

[-1, -8, 28, 8, 5, 5, 3, 3, 4, 4, 3, 3, 2, 3, 3, 3, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 1]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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