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.

A253047 Start with the natural numbers 1,2,3,...; interchange 2*prime(i) and 3*prime(i+1) for each i, and interchange prime(prime(i)) with prime(2*prime(i)) for each i.

Table of values

n a(n)
1 1
2 2
3 7
4 9
5 13
6 15
7 3
8 8
9 4
10 21
11 29
12 12
13 5
14 33
15 6
16 16
17 43
18 18
19 19
20 20
21 10
22 39
23 23
24 24
25 25
26 51
27 27
28 28
29 11
30 30
31 79
32 32
33 14
34 57
35 35
36 36
37 37
38 69
39 22
40 40
41 101
42 42
43 17
44 44
45 45
46 87
47 47
48 48
49 49
50 50
51 26
52 52
53 53
54 54
55 55
56 56
57 34
58 93
59 139
60 60
61 61
62 111
63 63

List of values

[1, 2, 7, 9, 13, 15, 3, 8, 4, 21, 29, 12, 5, 33, 6, 16, 43, 18, 19, 20, 10, 39, 23, 24, 25, 51, 27, 28, 11, 30, 79, 32, 14, 57, 35, 36, 37, 69, 22, 40, 101, 42, 17, 44, 45, 87, 47, 48, 49, 50, 26, 52, 53, 54, 55, 56, 34, 93, 139, 60, 61, 111, 63]