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.

A256148 Primitive prime factors of the cyclotomic polynomial sequence Phi(3, k) (or Phi(6, k)) in the order in which they occur.

Table of values

n a(n)
1 3
2 7
3 13
4 31
5 43
6 19
7 73
8 37
9 157
10 61
11 211
12 241
13 307
14 127
15 421
16 463
17 79
18 601
19 757
20 271
21 67
22 331
23 151
24 1123
25 397
26 97
27 1483
28 223
29 547
30 1723
31 139
32 631
33 283
34 109
35 103
36 181
37 2551
38 379
39 919
40 409
41 2971
42 3307
43 163
44 3541
45 523
46 3907
47 613
48 4423
49 4831
50 1657
51 5113
52 751

List of values

[3, 7, 13, 31, 43, 19, 73, 37, 157, 61, 211, 241, 307, 127, 421, 463, 79, 601, 757, 271, 67, 331, 151, 1123, 397, 97, 1483, 223, 547, 1723, 139, 631, 283, 109, 103, 181, 2551, 379, 919, 409, 2971, 3307, 163, 3541, 523, 3907, 613, 4423, 4831, 1657, 5113, 751]