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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.

A372512 Number of solutions to x^2 + y^2 + z^2 <= n, where x, y, z are positive odd integers.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 4
12 4
13 4
14 4
15 4
16 4
17 4
18 4
19 7
20 7
21 7
22 7
23 7
24 7
25 7
26 7
27 11
28 11
29 11
30 11
31 11
32 11
33 11
34 11
35 17
36 17
37 17
38 17
39 17
40 17
41 17
42 17
43 20
44 20
45 20
46 20
47 20
48 20
49 20
50 20
51 26
52 26
53 26
54 26
55 26
56 26
57 26
58 26
59 35
60 35
61 35
62 35
63 35
64 35
65 35
66 35
67 38
68 38
69 38
70 38
71 38
72 38
73 38
74 38
75 45
76 45
77 45
78 45
79 45
80 45

List of values

[0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 7, 7, 7, 7, 7, 7, 7, 7, 11, 11, 11, 11, 11, 11, 11, 11, 17, 17, 17, 17, 17, 17, 17, 17, 20, 20, 20, 20, 20, 20, 20, 20, 26, 26, 26, 26, 26, 26, 26, 26, 35, 35, 35, 35, 35, 35, 35, 35, 38, 38, 38, 38, 38, 38, 38, 38, 45, 45, 45, 45, 45, 45]

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