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.

A305726 Totients t the solutions of which cannot be divided by a prime to yield the solutions of a totient < t.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 12
7 16
8 18
9 20
10 24
11 32
12 36
13 40
14 42
15 48
16 54
17 60
18 64
19 72
20 80
21 84
22 88
23 96
24 100
25 108
26 112
27 120
28 128
29 132
30 144
31 156
32 160
33 162
34 168
35 176
36 180
37 192
38 200
39 216
40 220
41 224
42 232
43 240
44 252
45 256
46 264
47 272
48 276
49 280
50 288
51 294
52 300
53 312
54 320
55 324
56 336
57 342
58 348
59 352
60 360
61 384
62 396
63 400

List of values

[1, 2, 4, 6, 8, 12, 16, 18, 20, 24, 32, 36, 40, 42, 48, 54, 60, 64, 72, 80, 84, 88, 96, 100, 108, 112, 120, 128, 132, 144, 156, 160, 162, 168, 176, 180, 192, 200, 216, 220, 224, 232, 240, 252, 256, 264, 272, 276, 280, 288, 294, 300, 312, 320, 324, 336, 342, 348, 352, 360, 384, 396, 400]

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

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