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.

A373995 Zeros x1 of polynomial functions f(x) = 1/k*x*(x - x1)*(x - x2), which have three integer zeros 0, x1 and x2 (with 0 < x1 < x2) as well as two extreme points and one inflection point with integer x-coordinates (sorted in ascending order, first by the sum x1 + x2 and then by x1).

Table of values

n a(n)
1 9
2 15
3 18
4 21
5 24
6 15
7 30
8 27
9 48
10 45
11 36
12 42
13 33
14 48
15 21
16 30
17 60
18 45
19 72
20 39
21 75
22 54
23 63
24 72
25 48
26 99
27 27
28 96
29 63
30 45
31 90
32 105
33 72
34 84
35 105
36 66
37 96
38 42
39 117
40 51
41 81
42 60
43 120
44 33
45 96
46 90
47 105
48 144
49 120
50 135
51 57
52 144
53 99
54 168
55 78
56 135
57 75
58 150
59 120
60 108
61 126
62 99
63 144

List of values

[9, 15, 18, 21, 24, 15, 30, 27, 48, 45, 36, 42, 33, 48, 21, 30, 60, 45, 72, 39, 75, 54, 63, 72, 48, 99, 27, 96, 63, 45, 90, 105, 72, 84, 105, 66, 96, 42, 117, 51, 81, 60, 120, 33, 96, 90, 105, 144, 120, 135, 57, 144, 99, 168, 78, 135, 75, 150, 120, 108, 126, 99, 144]