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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.

A070919 a(n) = Card{ (x,y,z) | lcm(x,y,z)=n }.

Table of values

n a(n)
1 1
2 7
3 7
4 19
5 7
6 49
7 7
8 37
9 19
10 49
11 7
12 133
13 7
14 49
15 49
16 61
17 7
18 133
19 7
20 133
21 49
22 49
23 7
24 259
25 19
26 49
27 37
28 133
29 7
30 343
31 7
32 91
33 49
34 49
35 49
36 361
37 7
38 49
39 49
40 259
41 7
42 343
43 7
44 133
45 133
46 49
47 7
48 427
49 19
50 133
51 49
52 133
53 7
54 259
55 49
56 259
57 49
58 49
59 7
60 931
61 7
62 49
63 133
64 127
65 49
66 343
67 7
68 133

List of values

[1, 7, 7, 19, 7, 49, 7, 37, 19, 49, 7, 133, 7, 49, 49, 61, 7, 133, 7, 133, 49, 49, 7, 259, 19, 49, 37, 133, 7, 343, 7, 91, 49, 49, 49, 361, 7, 49, 49, 259, 7, 343, 7, 133, 133, 49, 7, 427, 19, 133, 49, 133, 7, 259, 49, 259, 49, 49, 7, 931, 7, 49, 133, 127, 49, 343, 7, 133]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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