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.

A292330 Numbers k such that k^2 divides 4^k + 1.

Table of values

n a(n)
1 1
2 5
3 205
4 168305
5 2084645
6 37217545
7 1711493545
8 2483072545
9 2763736405
10 8866165745
11 30555604445
12 55328770405
13 169592124685
14 378465215105
15 423977184745
16 2038602559445
17 3815777985545
18 7279122076645
19 25250364710105
20 28104435502445
21 45424920502505
22 55625535217765
23 90160039460905

List of values

[1, 5, 205, 168305, 2084645, 37217545, 1711493545, 2483072545, 2763736405, 8866165745, 30555604445, 55328770405, 169592124685, 378465215105, 423977184745, 2038602559445, 3815777985545, 7279122076645, 25250364710105, 28104435502445, 45424920502505, 55625535217765, 90160039460905]

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

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