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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.

A125692 Riordan array (1-x*c(-x^2),x(1-x*c(-x^2))) where c(x) is the g.f. of A000108.

Table of values

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

List of values

[1, -1, 1, 0, -2, 1, 1, 1, -3, 1, 0, 2, 3, -4, 1, -2, -2, 2, 6, -5, 1, 0, -4, -6, 0, 10, -6, 1, 5, 5, -3, -11, -5, 15, -7, 1, 0, 10, 15, 4, -15, -14, 21, -8, 1, -14, -14, 6, 26, 19, -15, -28, 28, -9, 1, 0, -28, -42, -16, 30, 42, -7, -48, 36, -10, 1]

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