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.

A274908 Largest prime factor of 8^n - 1.

Table of values

n a(n)
1 7
2 7
3 73
4 13
5 151
6 73
7 337
8 241
9 262657
10 331
11 599479
12 109
13 121369
14 5419
15 23311
16 673
17 131071
18 262657
19 1212847
20 1321
21 649657
22 599479
23 10052678938039
24 38737
25 10567201
26 22366891
27 97685839
28 14449
29 9857737155463
30 18837001
31 658812288653553079
32 22253377

List of values

[7, 7, 73, 13, 151, 73, 337, 241, 262657, 331, 599479, 109, 121369, 5419, 23311, 673, 131071, 262657, 1212847, 1321, 649657, 599479, 10052678938039, 38737, 10567201, 22366891, 97685839, 14449, 9857737155463, 18837001, 658812288653553079, 22253377]