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.

A126091 a(1)=1;a(2)=4; for n>2, a(n)=a(n-2)+3 if n is already in the sequence, a(n)=a(n-2)+1 otherwise.

Table of values

n a(n)
1 1
2 4
3 2
4 7
5 3
6 8
7 6
8 11
9 7
10 12
11 10
12 15
13 11
14 16
15 14
16 19
17 15
18 20
19 18
20 23
21 19
22 24
23 22
24 27
25 23
26 28
27 26
28 31
29 27
30 32
31 30
32 35
33 31
34 36
35 34
36 39
37 35
38 40
39 38
40 43
41 39
42 44
43 42
44 47
45 43
46 48
47 46
48 51
49 47
50 52
51 50
52 55
53 51
54 56
55 54
56 59
57 55
58 60
59 58
60 63
61 59
62 64
63 62
64 67
65 63
66 68
67 66
68 71
69 67
70 72
71 70
72 75

List of values

[1, 4, 2, 7, 3, 8, 6, 11, 7, 12, 10, 15, 11, 16, 14, 19, 15, 20, 18, 23, 19, 24, 22, 27, 23, 28, 26, 31, 27, 32, 30, 35, 31, 36, 34, 39, 35, 40, 38, 43, 39, 44, 42, 47, 43, 48, 46, 51, 47, 52, 50, 55, 51, 56, 54, 59, 55, 60, 58, 63, 59, 64, 62, 67, 63, 68, 66, 71, 67, 72, 70, 75]

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

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