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.

A224212 Number of nonnegative solutions to x^2 + y^2 <= n.

Table of values

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

List of values

[1, 3, 4, 4, 6, 8, 8, 8, 9, 11, 13, 13, 13, 15, 15, 15, 17, 19, 20, 20, 22, 22, 22, 22, 22, 26, 28, 28, 28, 30, 30, 30, 31, 31, 33, 33, 35, 37, 37, 37, 39, 41, 41, 41, 41, 43, 43, 43, 43, 45, 48, 48, 50, 52, 52, 52, 52, 52, 54, 54, 54, 56, 56, 56, 58, 62, 62, 62, 64]

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

Content is available under The OEIS End-User License Agreement.