cp's OEIS Frontend

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.

A097689 Number of prime pairs (p,q) with p^2 + q^2 <= n^2.

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 4
6 8
7 8
8 13
9 15
10 16
11 16
12 20
13 22
14 30
15 32
16 33
17 33
18 41
19 44
20 50
21 54
22 58
23 58
24 66
25 69
26 73
27 76
28 76
29 78
30 88
31 88
32 100
33 103
34 107
35 109
36 111
37 113
38 123
39 127
40 129
41 131
42 142
43 146
44 159
45 165
46 167
47 169
48 183
49 191
50 193
51 197
52 201
53 204
54 214
55 218
56 224
57 230
58 233
59 233
60 245
61 252
62 268

List of values

[0, 0, 1, 3, 4, 8, 8, 13, 15, 16, 16, 20, 22, 30, 32, 33, 33, 41, 44, 50, 54, 58, 58, 66, 69, 73, 76, 76, 78, 88, 88, 100, 103, 107, 109, 111, 113, 123, 127, 129, 131, 142, 146, 159, 165, 167, 169, 183, 191, 193, 197, 201, 204, 214, 218, 224, 230, 233, 233, 245, 252, 268]