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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.

A107498 Theta series of quadratic form with Gram matrix [ 4, -1, 1, 1; -1, 10, 3, 3; 1, 3, 10, -3; 1, 3, -3, 88].

Table of values

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

List of values

[1, 0, 2, 0, 0, 4, 4, 4, 6, 0, 0, 8, 0, 2, 0, 8, 0, 0, 6, 8, 12, 8, 0, 0, 12, 0, 6, 0, 8, 0, 0, 12, 14, 8, 8, 0, 0, 4, 0, 8, 0, 16, 0, 0, 24, 16, 16, 24, 0, 0, 26, 0, 14, 0, 36, 0, 0, 20, 24, 28, 44, 0, 0, 32, 0, 12, 0, 20, 0, 0, 40, 36, 58, 16, 0, 0, 52, 0, 24]

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

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