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.

A247216 Maximum of the smallest prime factors of (i^prime(n)-1)/(i-1), when i runs through all integers in [2, prime(n)].

Table of values

n a(n)
1 3
2 13
3 31
4 55987
5 12207031
6 16148168401
7 50544702849929377
8 109912203092239643840221
9 11111111111111111111111
10 7369130657357778596659
11 568972471024107865287021434301977158534824481
12 388230138454493

List of values

[3, 13, 31, 55987, 12207031, 16148168401, 50544702849929377, 109912203092239643840221, 11111111111111111111111, 7369130657357778596659, 568972471024107865287021434301977158534824481, 388230138454493]

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

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