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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.

A238098 Number of cubic polynomials with coefficients from {1..n} for which all three roots are integers.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 2
6 3
7 4
8 5
9 7
10 8
11 10
12 12
13 13
14 15
15 19
16 21
17 23
18 25
19 27
20 30
21 34
22 36
23 39
24 44
25 46
26 49
27 54
28 57
29 60
30 64
31 67
32 72
33 76
34 79
35 85
36 91
37 92
38 95
39 100
40 106
41 109
42 115
43 117
44 122
45 129
46 132
47 136
48 147
49 150
50 154
51 159
52 163
53 166
54 174
55 180
56 187
57 191
58 194
59 199
60 210
61 211
62 216

List of values

[0, 0, 1, 1, 2, 3, 4, 5, 7, 8, 10, 12, 13, 15, 19, 21, 23, 25, 27, 30, 34, 36, 39, 44, 46, 49, 54, 57, 60, 64, 67, 72, 76, 79, 85, 91, 92, 95, 100, 106, 109, 115, 117, 122, 129, 132, 136, 147, 150, 154, 159, 163, 166, 174, 180, 187, 191, 194, 199, 210, 211, 216]

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

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