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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.

A107497 Theta series of quadratic form with Gram matrix [ 2, 1, 1, 1; 1, 20, 7, 7; 1, 7, 20, 7; 1, 7, 7, 46].

Table of values

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

List of values

[1, 2, 0, 0, 2, 0, 0, 0, 0, 2, 8, 0, 8, 2, 4, 0, 10, 4, 0, 0, 0, 0, 12, 4, 0, 6, 6, 12, 0, 8, 20, 0, 0, 0, 0, 16, 22, 0, 24, 8, 24, 0, 32, 20, 0, 0, 0, 0, 36, 14, 0, 20, 14, 16, 0, 24, 32, 0, 0, 0, 0, 20, 28, 0, 30, 12, 44, 0, 24, 24, 0, 0, 0, 0, 28, 44, 0, 32]

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