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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.

A121830 a(n) = floor((Pi - e)*n).

Table of values

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

List of values

[0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 16, 17, 17, 18, 18, 19, 19, 19, 20, 20, 21, 21, 22, 22, 22, 23, 23, 24, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 29, 29, 30, 30, 30, 31, 31, 32]

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