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.

A098734 Consider the sequence {b(n), n >= 1} of digits of the integers: 0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0... (A033307); a(n) = n*b(n).

Table of values

n a(n)
1 0
2 2
3 6
4 12
5 20
6 30
7 42
8 56
9 72
10 90
11 11
12 0
13 13
14 14
15 15
16 32
17 17
18 54
19 19
20 80
21 21
22 110
23 23
24 144
25 25
26 182
27 27
28 224
29 29
30 270
31 62
32 0
33 66
34 34
35 70
36 72
37 74
38 114
39 78
40 160
41 82
42 210
43 86
44 264
45 90
46 322
47 94
48 384
49 98
50 450
51 153
52 0
53 159
54 54
55 165
56 112
57 171
58 174
59 177
60 240
61 183
62 310
63 189
64 384

List of values

[0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 11, 0, 13, 14, 15, 32, 17, 54, 19, 80, 21, 110, 23, 144, 25, 182, 27, 224, 29, 270, 62, 0, 66, 34, 70, 72, 74, 114, 78, 160, 82, 210, 86, 264, 90, 322, 94, 384, 98, 450, 153, 0, 159, 54, 165, 112, 171, 174, 177, 240, 183, 310, 189, 384]