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.

A129128 List of nodes generating two branches in the tree defined in sequence A129129.

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 7
6 11
7 10
8 13
9 17
10 14
11 19
12 15
13 18
14 23
15 29
16 22
17 21
18 31
19 26
20 37
21 41
22 30
23 43
24 35
25 34
26 47
27 33
28 38
29 53
30 59
31 42
32 39
33 61
34 46
35 67
36 71
37 50
38 55
39 73
40 54
41 79
42 51
43 58
44 83
45 65
46 62
47 57
48 89
49 66
50 97
51 101
52 70
53 103
54 107
55 74
56 109
57 69
58 78
59 85
60 77
61 82
62 75
63 113
64 86
65 127
66 95
67 90
68 131
69 137

List of values

[2, 3, 5, 6, 7, 11, 10, 13, 17, 14, 19, 15, 18, 23, 29, 22, 21, 31, 26, 37, 41, 30, 43, 35, 34, 47, 33, 38, 53, 59, 42, 39, 61, 46, 67, 71, 50, 55, 73, 54, 79, 51, 58, 83, 65, 62, 57, 89, 66, 97, 101, 70, 103, 107, 74, 109, 69, 78, 85, 77, 82, 75, 113, 86, 127, 95, 90, 131, 137]

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

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