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.

A105440 Highly cototient numbers that are prime, or intersection of A000040 and A100827.

Table of values

n a(n)
1 2
2 23
3 47
4 59
5 83
6 89
7 113
8 167
9 269
10 389
11 419
12 509
13 659
14 839
15 1049
16 1259
17 1889
18 2099
19 2309
20 2729
21 3359
22 3989
23 4289
24 4409
25 5879
26 6089
27 6719
28 9029
29 9239
30 10289
31 10709
32 11549
33 13649
34 13859
35 15329
36 15959
37 20789
38 21839
39 23099
40 25409
41 27299
42 30029
43 34649
44 43889
45 51869

List of values

[2, 23, 47, 59, 83, 89, 113, 167, 269, 389, 419, 509, 659, 839, 1049, 1259, 1889, 2099, 2309, 2729, 3359, 3989, 4289, 4409, 5879, 6089, 6719, 9029, 9239, 10289, 10709, 11549, 13649, 13859, 15329, 15959, 20789, 21839, 23099, 25409, 27299, 30029, 34649, 43889, 51869]

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

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