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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.

A131195 Nonprime record values of Euler's totient function (A000010): 1 and composite n such that phi(n) is greater than all smaller composites.

Table of values

n a(n)
1 1
2 4
3 8
4 9
5 15
6 21
7 25
8 35
9 49
10 65
11 77
12 85
13 91
14 115
15 119
16 121
17 143
18 161
19 169
20 187
21 203
22 209
23 221
24 247
25 253
26 287
27 289
28 319
29 323
30 341
31 361
32 391
33 403
34 437
35 451
36 473
37 481
38 493
39 517
40 527
41 529
42 583
43 589
44 611
45 629
46 649
47 667
48 689
49 697
50 703
51 713
52 731
53 767
54 779
55 799
56 817

List of values

[1, 4, 8, 9, 15, 21, 25, 35, 49, 65, 77, 85, 91, 115, 119, 121, 143, 161, 169, 187, 203, 209, 221, 247, 253, 287, 289, 319, 323, 341, 361, 391, 403, 437, 451, 473, 481, 493, 517, 527, 529, 583, 589, 611, 629, 649, 667, 689, 697, 703, 713, 731, 767, 779, 799, 817]

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

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