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.

A070810 Nonprime numbers k such that phi(k-phi(k)) = A054571(k) is a power of 2.

Table of values

n a(n)
1 4
2 6
3 8
4 9
5 10
6 12
7 14
8 16
9 18
10 20
11 22
12 24
13 25
14 28
15 32
16 36
17 38
18 39
19 40
20 42
21 44
22 46
23 48
24 50
25 55
26 56
27 58
28 62
29 64
30 65
31 72
32 76
33 77
34 80
35 84
36 88
37 92
38 94
39 96
40 100
41 112
42 116
43 118
44 124
45 128
46 134
47 144
48 152
49 158
50 160
51 165
52 168
53 176
54 184
55 188
56 192
57 200
58 202
59 224
60 232
61 235
62 236

List of values

[4, 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 25, 28, 32, 36, 38, 39, 40, 42, 44, 46, 48, 50, 55, 56, 58, 62, 64, 65, 72, 76, 77, 80, 84, 88, 92, 94, 96, 100, 112, 116, 118, 124, 128, 134, 144, 152, 158, 160, 165, 168, 176, 184, 188, 192, 200, 202, 224, 232, 235, 236]

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

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