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.

A175341 Number of coprime pairs (x,y) with x^2+y^2 <= n^2.

Table of values

n a(n)
0 0
1 4
2 8
3 16
4 32
5 48
6 72
7 88
8 120
9 152
10 192
11 224
12 264
13 312
14 384
15 440
16 480
17 544
18 616
19 672
20 768
21 832
22 928
23 1000
24 1112
25 1192
26 1280
27 1384
28 1488
29 1584
30 1704
31 1816
32 1960
33 2072
34 2224
35 2344
36 2480
37 2600
38 2752
39 2912
40 3064
41 3184
42 3360
43 3480
44 3696
45 3856
46 4016
47 4176

List of values

[0, 4, 8, 16, 32, 48, 72, 88, 120, 152, 192, 224, 264, 312, 384, 440, 480, 544, 616, 672, 768, 832, 928, 1000, 1112, 1192, 1280, 1384, 1488, 1584, 1704, 1816, 1960, 2072, 2224, 2344, 2480, 2600, 2752, 2912, 3064, 3184, 3360, 3480, 3696, 3856, 4016, 4176]