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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.

A296020 Number of primes of the form 4*k+3 <= 4*n+3.

Table of values

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

List of values

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

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

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