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.

A271983 The smaller of a pair n, m such that phi(n) = phi(m) and there is no other k such that phi(n) = phi(k).

Table of values

n a(n)
1 1
2 11
3 23
4 29
5 31
6 47
7 53
8 81
9 59
10 67
11 71
12 79
13 83
14 103
15 107
16 121
17 127
18 131
19 137
20 139
21 149
22 151
23 167
24 173
25 179
26 191
27 197
28 199
29 211
30 223
31 227
32 229
33 239
34 251
35 263
36 269
37 271
38 283
39 293
40 343
41 307
42 311
43 317
44 331
45 361
46 347
47 359
48 367
49 373
50 379
51 383
52 389
53 419
54 431
55 439
56 443
57 463
58 467
59 479
60 491
61 499

List of values

[1, 11, 23, 29, 31, 47, 53, 81, 59, 67, 71, 79, 83, 103, 107, 121, 127, 131, 137, 139, 149, 151, 167, 173, 179, 191, 197, 199, 211, 223, 227, 229, 239, 251, 263, 269, 271, 283, 293, 343, 307, 311, 317, 331, 361, 347, 359, 367, 373, 379, 383, 389, 419, 431, 439, 443, 463, 467, 479, 491, 499]

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

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