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.

A072182 A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives x's for Wallis pairs with x < y (ordered by values of x, then y).

Table of values

n a(n)
1 4
2 12
3 28
4 36
5 44
6 52
7 68
8 76
9 84
10 92
11 108
12 116
13 124
14 132
15 148
16 156
17 164
18 172
19 188
20 196
21 204
22 212
23 228
24 236
25 244
26 252
27 268
28 276
29 284
30 292
31 308
32 316
33 324
34 326
35 332
36 348
37 356
38 364
39 372
40 388
41 396
42 404
43 406
44 412
45 428
46 436
47 444
48 452
49 468
50 476
51 484
52 492
53 508
54 516

List of values

[4, 12, 28, 36, 44, 52, 68, 76, 84, 92, 108, 116, 124, 132, 148, 156, 164, 172, 188, 196, 204, 212, 228, 236, 244, 252, 268, 276, 284, 292, 308, 316, 324, 326, 332, 348, 356, 364, 372, 388, 396, 404, 406, 412, 428, 436, 444, 452, 468, 476, 484, 492, 508, 516]

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

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