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.

A220462 Chebyshev numbers C_v(n) for v=3/2: a(n) is the smallest number such that if x>=a(n), then theta(x)-theta(2*x/3)>=n*log(x), where theta(x) = sum_{prime p<=x} log p.

Table of values

n a(n)
1 13
2 37
3 41
4 67
5 73
6 97
7 127
8 137
9 173
10 179
11 181
12 211
13 229
14 239
15 263
16 307
17 311
18 347
19 367
20 379
21 431
22 433
23 443
24 449
25 479
26 487
27 541
28 563
29 587
30 599
31 607
32 641
33 643
34 673
35 739
36 757
37 787
38 797
39 809
40 823
41 827
42 859
43 937
44 967
45 997
46 1019
47 1031
48 1039
49 1049
50 1061
51 1087

List of values

[13, 37, 41, 67, 73, 97, 127, 137, 173, 179, 181, 211, 229, 239, 263, 307, 311, 347, 367, 379, 431, 433, 443, 449, 479, 487, 541, 563, 587, 599, 607, 641, 643, 673, 739, 757, 787, 797, 809, 823, 827, 859, 937, 967, 997, 1019, 1031, 1039, 1049, 1061, 1087]