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.

A066247 Characteristic function of composite numbers: 1 if n is composite else 0.

Table of values

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

List of values

[0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1]