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.

A086794 Numbers k such that the k-th cyclotomic polynomial has exactly 9 nonzero terms.

Table of values

n a(n)
1 21
2 42
3 63
4 84
5 126
6 147
7 168
8 189
9 252
10 294
11 336
12 378
13 441
14 504
15 567
16 588
17 672
18 756
19 882
20 1008
21 1029
22 1134
23 1176
24 1323
25 1344
26 1512
27 1701
28 1764
29 2016
30 2058
31 2268
32 2352
33 2646
34 2688
35 3024
36 3087
37 3402
38 3528
39 3969
40 4032
41 4116
42 4536
43 4704
44 5103
45 5292

List of values

[21, 42, 63, 84, 126, 147, 168, 189, 252, 294, 336, 378, 441, 504, 567, 588, 672, 756, 882, 1008, 1029, 1134, 1176, 1323, 1344, 1512, 1701, 1764, 2016, 2058, 2268, 2352, 2646, 2688, 3024, 3087, 3402, 3528, 3969, 4032, 4116, 4536, 4704, 5103, 5292]