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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.

A257076 Expansion of (1 - x^3) / (1 - x + x^2) in powers of x.

Table of values

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

List of values

[1, 1, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0]

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