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.

A129344 a(n) is the number of powers of 2 that have n decimal digits.

Table of values

n a(n)
1 4
2 3
3 3
4 4
5 3
6 3
7 4
8 3
9 3
10 4
11 3
12 3
13 4
14 3
15 3
16 4
17 3
18 3
19 4
20 3
21 3
22 4
23 3
24 3
25 4
26 3
27 3
28 4
29 3
30 3
31 3
32 4
33 3
34 3
35 4
36 3
37 3
38 4
39 3
40 3
41 4
42 3
43 3
44 4
45 3
46 3
47 4
48 3
49 3
50 4
51 3
52 3
53 4
54 3
55 3
56 4
57 3
58 3
59 3
60 4
61 3
62 3
63 4
64 3
65 3
66 4
67 3
68 3
69 4
70 3
71 3
72 4
73 3
74 3
75 4
76 3
77 3
78 4
79 3
80 3
81 4
82 3
83 3
84 4
85 3
86 3
87 4
88 3
89 3
90 3
91 4
92 3
93 3

List of values

[4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 3, 4, 3, 3]