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.

A138475 Least k such that the x^n coefficient of cyclotomic polynomial Phi(k,x) has the largest possible magnitude.

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 5
5 7
6 7
7 105
8 11
9 11
10 11
11 385
12 13
13 429
14 715
15 715
16 165
17 323323
18 15015
19 323323
20 1062347
21 1062347
22 373065
23 1062347
24 11305
25 1062347
26 1062347
27 1062347
28 37182145
29 2800733
30 37182145
31 5107219
32 40755
33 40755
34 275147873
35 10015005
36 215656441

List of values

[0, 1, 3, 5, 5, 7, 7, 105, 11, 11, 11, 385, 13, 429, 715, 715, 165, 323323, 15015, 323323, 1062347, 1062347, 373065, 1062347, 11305, 1062347, 1062347, 1062347, 37182145, 2800733, 37182145, 5107219, 40755, 40755, 275147873, 10015005, 215656441]