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.

A081841 a(1)=0, a(n)=a(n-1)+3 if n is already in the sequence, a(n)=a(n-1)+2 otherwise.

Table of values

n a(n)
1 0
2 2
3 4
4 7
5 9
6 11
7 14
8 16
9 19
10 21
11 24
12 26
13 28
14 31
15 33
16 36
17 38
18 40
19 43
20 45
21 48
22 50
23 52
24 55
25 57
26 60
27 62
28 65
29 67
30 69
31 72
32 74
33 77
34 79
35 81
36 84
37 86
38 89
39 91
40 94
41 96
42 98
43 101
44 103
45 106
46 108
47 110
48 113
49 115
50 118
51 120
52 123
53 125
54 127
55 130
56 132
57 135
58 137
59 139
60 142
61 144
62 147
63 149
64 151

List of values

[0, 2, 4, 7, 9, 11, 14, 16, 19, 21, 24, 26, 28, 31, 33, 36, 38, 40, 43, 45, 48, 50, 52, 55, 57, 60, 62, 65, 67, 69, 72, 74, 77, 79, 81, 84, 86, 89, 91, 94, 96, 98, 101, 103, 106, 108, 110, 113, 115, 118, 120, 123, 125, 127, 130, 132, 135, 137, 139, 142, 144, 147, 149, 151]

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

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