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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.

A256145 Primitive prime factors of the cyclotomic polynomial sequence Phi(8,k) in the order in which they occur.

Table of values

n a(n)
1 2
2 17
3 41
4 257
5 313
6 1297
7 1201
8 241
9 193
10 73
11 137
12 7321
13 89
14 233
15 14281
16 937
17 1489
18 65537
19 41761
20 113
21 929
22 3833
23 160001
24 97241
25 3209
26 139921
27 331777
28 11489
29 26881
30 6481
31 614657
32 353641
33 3361
34 409
35 1129
36 61681
37 97
38 6113
39 1336337
40 750313
41 98801
42 10529
43 50857

List of values

[2, 17, 41, 257, 313, 1297, 1201, 241, 193, 73, 137, 7321, 89, 233, 14281, 937, 1489, 65537, 41761, 113, 929, 3833, 160001, 97241, 3209, 139921, 331777, 11489, 26881, 6481, 614657, 353641, 3361, 409, 1129, 61681, 97, 6113, 1336337, 750313, 98801, 10529, 50857]

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

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