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.

A072029 Swap twin prime pairs of form (4*k+3,4*(k+1)+1) in prime factorization of n.

Table of values

n a(n)
1 1
2 2
3 5
4 4
5 3
6 10
7 7
8 8
9 25
10 6
11 13
12 20
13 11
14 14
15 15
16 16
17 17
18 50
19 19
20 12
21 35
22 26
23 23
24 40
25 9
26 22
27 125
28 28
29 29
30 30
31 31
32 32
33 65
34 34
35 21
36 100
37 37
38 38
39 55
40 24
41 41
42 70
43 43
44 52
45 75
46 46
47 47
48 80
49 49
50 18
51 85
52 44
53 53
54 250
55 39
56 56
57 95
58 58
59 61
60 60
61 59
62 62
63 175
64 64
65 33

List of values

[1, 2, 5, 4, 3, 10, 7, 8, 25, 6, 13, 20, 11, 14, 15, 16, 17, 50, 19, 12, 35, 26, 23, 40, 9, 22, 125, 28, 29, 30, 31, 32, 65, 34, 21, 100, 37, 38, 55, 24, 41, 70, 43, 52, 75, 46, 47, 80, 49, 18, 85, 44, 53, 250, 39, 56, 95, 58, 61, 60, 59, 62, 175, 64, 33]

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

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