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.

A007374 Smallest k such that phi(x) = k has exactly n solutions, n>=2.

Table of values

n a(n)
2 1
3 2
4 4
5 8
6 12
7 32
8 36
9 40
10 24
11 48
12 160
13 396
14 2268
15 704
16 312
17 72
18 336
19 216
20 936
21 144
22 624
23 1056
24 1760
25 360
26 2560
27 384
28 288
29 1320
30 3696
31 240
32 768
33 9000
34 432
35 7128
36 4200
37 480
38 576
39 1296
40 1200
41 15936
42 3312
43 3072
44 3240
45 864
46 3120
47 7344
48 3888
49 720
50 1680
51 4992

List of values

[1, 2, 4, 8, 12, 32, 36, 40, 24, 48, 160, 396, 2268, 704, 312, 72, 336, 216, 936, 144, 624, 1056, 1760, 360, 2560, 384, 288, 1320, 3696, 240, 768, 9000, 432, 7128, 4200, 480, 576, 1296, 1200, 15936, 3312, 3072, 3240, 864, 3120, 7344, 3888, 720, 1680, 4992]

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

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