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.

A072186 A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives y's for Wallis pairs with x < y (ordered by values of x).

Table of values

n a(n)
1 5
2 15
3 35
4 45
5 55
6 65
7 85
8 95
9 105
10 115
11 135
12 145
13 155
14 165
15 185
16 195
17 205
18 215
19 235
20 245
21 255
22 265
23 285
24 295
25 305
26 315
27 335
28 345
29 355
30 365
31 385
32 395
33 405
34 407
35 415
36 435
37 445
38 455
39 465
40 485
41 495
42 505
43 489
44 515
45 535
46 545
47 555
48 565
49 585
50 595
51 605
52 615
53 635

List of values

[5, 15, 35, 45, 55, 65, 85, 95, 105, 115, 135, 145, 155, 165, 185, 195, 205, 215, 235, 245, 255, 265, 285, 295, 305, 315, 335, 345, 355, 365, 385, 395, 405, 407, 415, 435, 445, 455, 465, 485, 495, 505, 489, 515, 535, 545, 555, 565, 585, 595, 605, 615, 635]

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

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