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.

A117208 G.f. A(x) satisfies (1-x) = product_{n>=1} A(x^n).

Table of values

n a(n)
0 1
1 -1
2 1
3 0
4 0
5 1
6 -1
7 2
8 -1
9 1
10 0
11 1
12 0
13 1
14 0
15 0
16 2
17 -1
18 2
19 0
20 1
21 0
22 1
23 1
24 1
25 0
26 1
27 1
28 0
29 2
30 1
31 1
32 1
33 0
34 2
35 0
36 3
37 0
38 0
39 2
40 0
41 3
42 0
43 3
44 -1
45 2
46 0
47 4
48 1
49 1
50 3
51 -3
52 5
53 1
54 3
55 0
56 2
57 -1
58 2
59 4
60 2
61 4
62 -5
63 6
64 -1
65 2
66 7
67 -2
68 1
69 -1
70 4
71 3
72 5
73 2
74 -2
75 1
76 1
77 8
78 2
79 4
80 -1
81 -3
82 4
83 9
84 4
85 -2
86 4
87 -7
88 6
89 7
90 10
91 -1
92 -3
93 -1
94 1
95 11
96 4
97 8
98 -15
99 2
100 5
101 7
102 13
103 1
104 -9
105 -7
106 9

List of values

[1, -1, 1, 0, 0, 1, -1, 2, -1, 1, 0, 1, 0, 1, 0, 0, 2, -1, 2, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 2, 1, 1, 1, 0, 2, 0, 3, 0, 0, 2, 0, 3, 0, 3, -1, 2, 0, 4, 1, 1, 3, -3, 5, 1, 3, 0, 2, -1, 2, 4, 2, 4, -5, 6, -1, 2, 7, -2, 1, -1, 4, 3, 5, 2, -2, 1, 1, 8, 2, 4, -1, -3, 4, 9, 4, -2, 4, -7, 6, 7, 10, -1, -3, -1, 1, 11, 4, 8, -15, 2, 5, 7, 13, 1, -9, -7, 9]