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.

A323626 For any nonnegative real number x, let f(x) be the real number obtained by replacing in the binary expansions of the integer and fractional parts of x each finite run of k consecutive equal bits b with a run of k-(-1)^k consecutive bits b; a(n) is the numerator of f(1/n).

Table of values

n a(n)
1 3
2 3
3 1
4 3
5 1
6 2
7 3
8 3
9 1
10 1
11 13
12 1
13 7
14 3
15 1
16 3
17 1
18 2
19 77
20 1
21 1
22 26
23 203
24 1
25 817
26 14
27 109
28 3
29 1037
30 2
31 3
32 3
33 1
34 1
35 1297
36 1
37 20275
38 77
39 155
40 1
41 17
42 1
43 13
44 13
45 67
46 203
47 6716227
48 1
49 421735
50 817
51 17
52 7
53 2306997
54 109
55 55739
56 3
57 49
58 1037
59 818712813
60 1
61 138203853
62 3

List of values

[3, 3, 1, 3, 1, 2, 3, 3, 1, 1, 13, 1, 7, 3, 1, 3, 1, 2, 77, 1, 1, 26, 203, 1, 817, 14, 109, 3, 1037, 2, 3, 3, 1, 1, 1297, 1, 20275, 77, 155, 1, 17, 1, 13, 13, 67, 203, 6716227, 1, 421735, 817, 17, 7, 2306997, 109, 55739, 3, 49, 1037, 818712813, 1, 138203853, 3]