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.

A058183 Number of digits in concatenation of first n positive integers.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 11
11 13
12 15
13 17
14 19
15 21
16 23
17 25
18 27
19 29
20 31
21 33
22 35
23 37
24 39
25 41
26 43
27 45
28 47
29 49
30 51
31 53
32 55
33 57
34 59
35 61
36 63
37 65
38 67
39 69
40 71
41 73
42 75
43 77
44 79
45 81
46 83
47 85
48 87
49 89
50 91
51 93
52 95
53 97
54 99
55 101
56 103
57 105
58 107
59 109
60 111
61 113
62 115
63 117
64 119
65 121
66 123
67 125

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125]

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

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