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.

A063999 Numbers k such that the number of primes <= k is phi(phi(k)).

Table of values

n a(n)
1 2
2 37
3 55
4 91
5 95
6 136
7 178
8 226
9 507
10 723
11 1166
12 1168
13 1284
14 1323
15 2658
16 3082
17 7564
18 8166
19 11578
20 12014
21 12018
22 12026
23 15340
24 40220
25 50544
26 55490
27 56810
28 69732
29 89210
30 100114
31 100126
32 111306
33 131532
34 226716
35 226722
36 232938
37 519312
38 683240
39 849534

List of values

[2, 37, 55, 91, 95, 136, 178, 226, 507, 723, 1166, 1168, 1284, 1323, 2658, 3082, 7564, 8166, 11578, 12014, 12018, 12026, 15340, 40220, 50544, 55490, 56810, 69732, 89210, 100114, 100126, 111306, 131532, 226716, 226722, 232938, 519312, 683240, 849534]