cp's OEIS Frontend

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.

A112465 Riordan array (1/(1+x), x/(1-x)).

Table of values

n a(n)
0 1
1 -1
2 1
3 1
4 0
5 1
6 -1
7 1
8 1
9 1
10 1
11 0
12 2
13 2
14 1
15 -1
16 1
17 2
18 4
19 3
20 1
21 1
22 0
23 3
24 6
25 7
26 4
27 1
28 -1
29 1
30 3
31 9
32 13
33 11
34 5
35 1
36 1
37 0
38 4
39 12
40 22
41 24
42 16
43 6
44 1
45 -1
46 1
47 4
48 16
49 34
50 46
51 40
52 22
53 7
54 1
55 1
56 0
57 5
58 20
59 50
60 80
61 86
62 62
63 29
64 8
65 1
66 -1
67 1
68 5
69 25
70 70
71 130
72 166
73 148
74 91
75 37
76 9
77 1
78 1
79 0
80 6
81 30
82 95
83 200
84 296
85 314
86 239
87 128
88 46
89 10
90 1

List of values

[1, -1, 1, 1, 0, 1, -1, 1, 1, 1, 1, 0, 2, 2, 1, -1, 1, 2, 4, 3, 1, 1, 0, 3, 6, 7, 4, 1, -1, 1, 3, 9, 13, 11, 5, 1, 1, 0, 4, 12, 22, 24, 16, 6, 1, -1, 1, 4, 16, 34, 46, 40, 22, 7, 1, 1, 0, 5, 20, 50, 80, 86, 62, 29, 8, 1, -1, 1, 5, 25, 70, 130, 166, 148, 91, 37, 9, 1, 1, 0, 6, 30, 95, 200, 296, 314, 239, 128, 46, 10, 1]