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.

A152940 Odd squarefree numbers n such that the cyclotomic polynomial Phi(n,x) has height 2.

Table of values

n a(n)
1 105
2 165
3 195
4 255
5 273
6 285
7 345
8 357
9 429
10 455
11 555
12 561
13 609
14 615
15 627
16 645
17 705
18 715
19 759
20 777
21 795
22 805
23 897
24 957
25 969
26 987
27 1001
28 1005
29 1015
30 1023
31 1045
32 1065
33 1085
34 1095
35 1105
36 1131
37 1185
38 1221
39 1239
40 1245
41 1265
42 1295
43 1407
44 1419
45 1435
46 1455
47 1491

List of values

[105, 165, 195, 255, 273, 285, 345, 357, 429, 455, 555, 561, 609, 615, 627, 645, 705, 715, 759, 777, 795, 805, 897, 957, 969, 987, 1001, 1005, 1015, 1023, 1045, 1065, 1085, 1095, 1105, 1131, 1185, 1221, 1239, 1245, 1265, 1295, 1407, 1419, 1435, 1455, 1491]