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.

A086761 Numbers k such that k-th cyclotomic polynomial has exactly 5 nonzero terms.

Table of values

n a(n)
1 5
2 10
3 20
4 25
5 40
6 50
7 80
8 100
9 125
10 160
11 200
12 250
13 320
14 400
15 500
16 625
17 640
18 800
19 1000
20 1250
21 1280
22 1600
23 2000
24 2500
25 2560
26 3125
27 3200
28 4000
29 5000
30 5120
31 6250
32 6400
33 8000
34 10000
35 10240
36 12500
37 12800
38 15625
39 16000
40 20000
41 20480
42 25000
43 25600
44 31250
45 32000

List of values

[5, 10, 20, 25, 40, 50, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1250, 1280, 1600, 2000, 2500, 2560, 3125, 3200, 4000, 5000, 5120, 6250, 6400, 8000, 10000, 10240, 12500, 12800, 15625, 16000, 20000, 20480, 25000, 25600, 31250, 32000]