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.

A271518 Number of ordered ways to write n as w^2 + x^2 + y^2 + z^2 with x + 3*y + 5*z a square, where w, x, y and z are nonnegative integers.

Table of values

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

List of values

[1, 2, 2, 2, 2, 1, 1, 1, 1, 3, 3, 2, 2, 2, 4, 2, 2, 5, 5, 3, 2, 2, 2, 3, 1, 5, 5, 2, 2, 5, 8, 1, 2, 6, 3, 3, 2, 3, 7, 5, 2, 8, 6, 1, 4, 6, 6, 2, 2, 6, 9, 5, 4, 3, 7, 6, 2, 6, 7, 5, 2, 1, 6, 6, 2, 10, 9, 6, 3, 3, 6, 2, 3, 8, 12, 5, 5, 7, 11, 5, 1]