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.

A081839 a(1)=0, a(n)=a(n-1)+4 if n is already in the sequence, a(n)=a(n-1)+5 otherwise.

Table of values

n a(n)
1 0
2 5
3 10
4 15
5 19
6 24
7 29
8 34
9 39
10 43
11 48
12 53
13 58
14 63
15 67
16 72
17 77
18 82
19 86
20 91
21 96
22 101
23 106
24 110
25 115
26 120
27 125
28 130
29 134
30 139
31 144
32 149
33 154
34 158
35 163
36 168
37 173
38 178
39 182
40 187
41 192
42 197
43 201
44 206
45 211
46 216
47 221
48 225
49 230
50 235
51 240
52 245
53 249
54 254
55 259
56 264
57 269

List of values

[0, 5, 10, 15, 19, 24, 29, 34, 39, 43, 48, 53, 58, 63, 67, 72, 77, 82, 86, 91, 96, 101, 106, 110, 115, 120, 125, 130, 134, 139, 144, 149, 154, 158, 163, 168, 173, 178, 182, 187, 192, 197, 201, 206, 211, 216, 221, 225, 230, 235, 240, 245, 249, 254, 259, 264, 269]