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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.

A107501 Theta series of quadratic form with Gram matrix [ 6, 3, 2, 2; 3, 8, 1, 1; 2, 1, 18, 5; 2, 1, 5, 44].

Table of values

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

List of values

[1, 0, 0, 2, 4, 0, 0, 0, 0, 2, 6, 0, 6, 2, 6, 0, 8, 2, 0, 0, 0, 0, 14, 6, 0, 10, 6, 12, 0, 8, 20, 0, 0, 0, 0, 12, 24, 0, 22, 8, 28, 0, 26, 14, 0, 0, 0, 0, 36, 16, 0, 24, 14, 22, 0, 22, 30, 0, 0, 0, 0, 20, 34, 0, 30, 12, 36, 0, 32, 30, 0, 0, 0, 0, 26, 30, 0, 20]

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