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.

A080590 a(1)=1; for n>1, a(n)=a(n-1)+3 if n is already in the sequence, a(n)=a(n-1)+4 otherwise.

Table of values

n a(n)
1 1
2 5
3 9
4 13
5 16
6 20
7 24
8 28
9 31
10 35
11 39
12 43
13 46
14 50
15 54
16 57
17 61
18 65
19 69
20 72
21 76
22 80
23 84
24 87
25 91
26 95
27 99
28 102
29 106
30 110
31 113
32 117
33 121
34 125
35 128
36 132
37 136
38 140
39 143
40 147
41 151
42 155
43 158
44 162
45 166
46 169
47 173
48 177
49 181
50 184
51 188
52 192
53 196
54 199
55 203
56 207

List of values

[1, 5, 9, 13, 16, 20, 24, 28, 31, 35, 39, 43, 46, 50, 54, 57, 61, 65, 69, 72, 76, 80, 84, 87, 91, 95, 99, 102, 106, 110, 113, 117, 121, 125, 128, 132, 136, 140, 143, 147, 151, 155, 158, 162, 166, 169, 173, 177, 181, 184, 188, 192, 196, 199, 203, 207]