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.

A136031 Largest prime factor of composite Mersenne numbers.

Table of values

n a(n)
1 89
2 178481
3 2089
4 616318177
5 164511353
6 2099863
7 13264529
8 20394401
9 3203431780337
10 761838257287
11 212885833
12 9361973132609
13 1113491139767
14 57912614113275649087721
15 13842607235828485645766393
16 341117531003194129
17 3976656429941438590393

List of values

[89, 178481, 2089, 616318177, 164511353, 2099863, 13264529, 20394401, 3203431780337, 761838257287, 212885833, 9361973132609, 1113491139767, 57912614113275649087721, 13842607235828485645766393, 341117531003194129, 3976656429941438590393]