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.

A272364 Number of integer solutions to a^2 + b^2 + 3*c^2 + 4*d^2 = n.

Table of values

n a(n)
0 1
1 4
2 4
3 2
4 14
5 24
6 8
7 12
8 44
9 36
10 8
11 24
12 50
13 40
14 24
15 16
16 50
17 96
18 28
19 12
20 112
21 96
22 24
23 48
24 104
25 68
26 56
27 50
28 60
29 168
30 40
31 12
32 188
33 144
34 32
35 48
36 182
37 104
38 72
39 76
40 88
41 240
42 48
43 60
44 240
45 168
46 48
47 96
48 230
49 124
50 84
51 64
52 196
53 312
54 80
55 48
56 312
57 264
58 56
59 120
60 160
61 200
62 120
63 60

List of values

[1, 4, 4, 2, 14, 24, 8, 12, 44, 36, 8, 24, 50, 40, 24, 16, 50, 96, 28, 12, 112, 96, 24, 48, 104, 68, 56, 50, 60, 168, 40, 12, 188, 144, 32, 48, 182, 104, 72, 76, 88, 240, 48, 60, 240, 168, 48, 96, 230, 124, 84, 64, 196, 312, 80, 48, 312, 264, 56, 120, 160, 200, 120, 60]

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

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