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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.

A197629 Number of ways to write n as the sum of two coprime, squarefree, composite, positive integers.

Table of values

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

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 0, 1, 0, 1, 0, 2, 0, 5, 0, 0, 0, 1, 0, 3, 1, 2, 0, 3, 0, 4, 1, 0, 1, 3, 0, 5, 0, 2, 0, 4, 0, 1, 2]

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